Yes. This is considered to be a major printing error. You should have it evaluated by a couple of currency dealers because it could retail anywhere from $150 to $400.
Multiple bills are printed on large sheets of paper, and it takes at least 3 passes to print different parts of the design. If a sheet is accidentally put through one of the passes upside-down* the error you have will result.
(*) Please be careful about typing and spelling. Major typos make it very difficult for answerers to find and research questions.
Qs are printed as part of the serial number on older 1 dollar bills. It doesn't mean anything.
Serial numbers on any bills are counters and a security feature. A specific serial number doesn't stand for anything except the order in which a particular bill was printed as part of a print run.
The Australian One Dollar note (Johnston/Stone) in the serial number range DGJ to DPS would have been printed in 1982. The last of the One Dollar notes to be printed before the introduction of the One Dollar coin.
It will have the words Silver Certificate printed across the top of the bill's front. In most but not all cases, the seal and serial numbers will be printed in blue ink.
The vast majority of "Confederate" bills are actually replicas printed as souvenirs and novelty items. Check the Related Link for a list of copies and their serial numbers.
Most Likely not because when the serial numbers are that high then it may not be
Serial numbers are printed twice as a security measure. However once in a while one of the counters gets stuck and the two numbers become out of sync. Current retail prices are in the $100-200 range.
Australian One Dollar notes with the serial range CPK to DGH were printed in 1979.
It has no particular meaning. Serial numbers are counters and a security feature; they're printed sequentially so your bill is simply one of many billions.
Serial numbers are printed twice as a security measure. However once in a while one of the counters gets stuck and the two numbers become out of sync. Current retail prices are in the $100-200 range.
It has no extra value. The "embossed" serial numbers aren't an error or special type of printing. All it means is that the counter that prints the numbers was slightly misaligned, so it was pressed more firmly into the paper when the bill was printed.
Every serial number is as rare as the next, because every note has a different one.