31457232012 has 12 divisors (see below), whose sum is σ = 73400208056. Its totient is φ = 10485744000.

The previous prime is 31457232011. The next prime is 31457232013. The reversal of 31457232012 is 21023275413.

It is an interprime number because it is at equal distance from previous prime (31457232011) and next prime (31457232013).

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (31457232011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1310717989 + ... + 1310718012.

Almost surely, 2^31457232012 is an apocalyptic number.

It is an amenable number.

31457232012 is an abundant number, since it is smaller than the sum of its proper divisors (41942976044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31457232012 is a wasteful number, since it uses less digits than its factorization.

31457232012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621436008 (or 2621436006 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The spelling of 31457232012 in words is "thirty-one billion, four hundred fifty-seven million, two hundred thirty-two thousand, twelve".