/* C++ Program - Check Palindrome or Not */
		
#include<iostream.h>
#include<conio.h>
void main()
{
	clrscr();
	int num, orig, rev=0, rem;
	cout<<"Enter a number : ";
	cin>>num;
	orig=num;
	while(num>0)
	{
		rem=num%10;
		rev=rev*10+rem;
		num=num/10;
	}
	if(orig==rev)
	{
		cout<<"It is Palindrome";
	}
	else
	{
		cout<<"It is not Palindrome";
	}
	getch();
}
Output
Enter a number: 121
It is Palindrome