If you want to buy some, look up coin dealers in your area and pay one of them a visit.
The 1 million Australian dollar does not exist and cannot be used as medium of exchange. The highest denomination in banknotes for Australia is the $100 note which was released in 1984.
For a valuation on Australian banknotes, you would need to provide the serial number and the signatories on the note, the condition and any peculiarities.
At the time of answering - $1.00 USD (US Dollar) = $0.96 AUD (Australian Dollar) or $1.00 AUD = $1.04 USD. There are differences in the banknotes as well. US banknotes are made of paper, whereas Australian banknotes are made of a more durable polypropylene polymer. US dollars come in $1, $5, $10, $20, $50, and $100 notes. Australian dollars come in $2 (although no longer printed, still legal tender), $5, $10, $20, $50, and $100 notes.
Australia has a decimal currency system of 100 cents to the Australian Dollar (AUD). Banknotes include $100, $50, $20, 10 and $5. Coins include $2, $1, 50 cents, 20 cents, 10 cents and 5 cents.
Australia use the Australian Dollar (AU$). The dollar is made up of 100 cents. We have 5c, 10c, 20c, 50c, $1 and $2 coins and $5, $10, $20, $50, and $100 banknotes.
Australian banknotes are all made of plastic, specifically polymer. Australia was the first country in the world to have all its banknotes made of polymer. The composition of the 5, 10, 20 and 50 cent coins is 25% nickel and 75% copper. The $1 and $2 coins are composed of 92 % copper, 6 % aluminum and 2 % nickel.
100 cents = 1 Australian dollar
1 Australian dollar is worth 1.06 Dollar in US
As of 30th June 2009: 1 Australian Dollar = 0.81 US DOllars 1 US Dollar = 1.24 Australian Dollars
December 1, 2010: 1 danish krone = 0.1822 Australian dollar. 1 Australian dollar = 5,4884 danish kroner.
1 Australian Dollar is currently worth .69 Euro
New Turkish lira banknotes began to be used in 1 January 2009. During 2009, both old and new banknotes will be accepted but by 2010, old banknotes will expire.