31120209304 has 16 divisors (see below), whose sum is σ = 58392911520. Its totient is φ = 15548766240.

The previous prime is 31120209293. The next prime is 31120209313. The reversal of 31120209304 is 40390202113.

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, 1405632 + ... + 1427599.

It is an arithmetic number, because the mean of its divisors is an integer number (3649556970).

Almost surely, 2^31120209304 is an apocalyptic number.

It is an amenable number.

31120209304 is a deficient number, since it is larger than the sum of its proper divisors (27272702216).

31120209304 is a wasteful number, since it uses less digits than its factorization.

31120209304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834610 (or 2834606 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 31120209304 in words is "thirty-one billion, one hundred twenty million, two hundred nine thousand, three hundred four".