A palindromic number can have as few as one digit, and as many as infinity. The smallest palindromic number is zero and the largest is '999... to infinity'.
there is no limit.
10+1=11 (which is a palindrome)
23932
There is no limit to numbers, thus there is no limit to palindrome numbers.
Palindrome numbers are numbers that read the same backwards and forwards, like 32923
30 palindromes.
90
275
Only one . . . 101 .
Probably a misspelling of palindrome numbers.
One. If you mean "digits", the number can have any amount of digits; the only requirement to be called a "palindrome" is that if you read it backwards, you get the same sequence of digits. Thus, any of the following is a palindrome: 1 (any 1-digit number is a palindrome), 55, 121, 2002, 12321, 600006, 8105018, ... As you can see, you can make them arbitrarily large.
Nine, not including 2.