palindromeNumber.py

class Solution:
    def isPalindrome(self, x: int) -> bool:
        if (x < 0 or (x % 10 == 0 and x != 0)):
            return False
        rev = 0
        while (x > rev):
            rev = rev * 10 + x % 10
            x = x // 10
        return x == rev or x == rev // 10