wow
wow
wowwow
wow
wow
wow
radar
If you mean the number 1,111 or simply 1111, this is a palindrome. A palindrome is a string or number that is spelled or written the same way forward and backward.
mum
tot
peep
race car
do you mean mean dates or years? If we use 2 digit month and day and 4 digit year jan 2, 2010 01 02 2010 2112 is the next palindrome year