C Program to check number is palindrome or not

C Program Code

//Check number is palindrome of not
#include "stdio.h"
#include "conio.h"
void main()
{
int num,rev=0,m,r;
clrscr();
printf("enter any number");
scanf("%d",&num);
m=num;
while(num>0)
{
r=num%10;
rev=rev*10+r;
num=num/10;
}
if(rev==m)
printf("given number is palindrome");
else
printf("given number is not palindrome");
getch();
}

Input/Output

enter any number 121
given number is palindrome

enter any number 423
given number is not palindrome

What is Palindrome No?

when we read a number. If backward read is as same as forward read then number is palindrome.