31103233232 has 40 divisors (see below), whose sum is σ = 60494482272. Its totient is φ = 15491836800.

The previous prime is 31103233211. The next prime is 31103233241. The reversal of 31103233232 is 23233230113.

It is a super-2 number, since 2×31103233232² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31103233198 and 31103233207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12555578 + ... + 12558054.

Almost surely, 2^31103233232 is an apocalyptic number.

It is an amenable number.

31103233232 is a deficient number, since it is larger than the sum of its proper divisors (29391249040).

31103233232 is a wasteful number, since it uses less digits than its factorization.

31103233232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5187 (or 5181 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 31103233232 its reverse (23233230113), we get a palindrome (54336463345).

The spelling of 31103233232 in words is "thirty-one billion, one hundred three million, two hundred thirty-three thousand, two hundred thirty-two".