31404520012 has 24 divisors (see below), whose sum is σ = 55249144832. Its totient is φ = 15619165200.

The previous prime is 31404520003. The next prime is 31404520057. The reversal of 31404520012 is 21002540413.

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, 1137937 + ... + 1165207.

Almost surely, 2^31404520012 is an apocalyptic number.

It is an amenable number.

31404520012 is a deficient number, since it is larger than the sum of its proper divisors (23844624820).

31404520012 is a wasteful number, since it uses less digits than its factorization.

31404520012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28789 (or 28787 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The spelling of 31404520012 in words is "thirty-one billion, four hundred four million, five hundred twenty thousand, twelve".