Mathematically check if a number is a palindrome

palindrome_check.py

def extract_digits_left(num): 
if num < 10: 
         return [num] 
     else: 
         return [*extract_digits_left(num // 10), num % 10] 
                                                                                                                                                                                                           

def extract_digits_right(num): 
     if num < 10: 
         return [num] 
     else: 
         return [num % 10, *extract_digits_right(num // 10)]
    
   
def is_palindrome(num): 
     return extract_digits_left(num) == extract_digits_right(num)