Palindrome strings

A palindrome is a word, phrase, number, or other sequence of characters which reads the same backward or forward. This includes capital letters, punctuation, and word dividers.

Implement a function that checks if something is a palindrome. If the input is a number, convert it to string first.

Examples(Input ==> Output)

"anna"   ==> true
"walter" ==> false
12321    ==> true
123456   ==> false