31331313304 has 16 divisors (see below), whose sum is σ = 58753240920. Its totient is φ = 15663782400.

The previous prime is 31331313281. The next prime is 31331313341. The reversal of 31331313304 is 40331313313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161922 + ... + 298129.

Almost surely, 2^31331313304 is an apocalyptic number.

It is an amenable number.

31331313304 is a deficient number, since it is larger than the sum of its proper divisors (27421927616).

31331313304 is a wasteful number, since it uses less digits than its factorization.

31331313304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468570 (or 468566 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 31331313304 its reverse (40331313313), we get a palindrome (71662626617).

Subtracting 31331313304 from its reverse (40331313313), we obtain a palindrome (9000000009).

The spelling of 31331313304 in words is "thirty-one billion, three hundred thirty-one million, three hundred thirteen thousand, three hundred four".