Quickest Method to Reverse in String in C#.net

Question

I\'m currently writing a quick solution for Euler Problem #4 where one must find the largest palindromic number from the product of two 3-digit numbers.

To identify if a

Answer 1

Wouldn't reversing the number be faster?

// unchecked code, don't kill me if it doesn't even compile.
ulong Reverse(ulong number) {
    ulong result = 0;

    while (number > 0) {
        ulong digit = number % 10;
        result = result * 10 + digit;
        number /= 10;
    }

    return result;
}