31575906112 has 28 divisors (see below), whose sum is σ = 63540961056. Its totient is φ = 15565585280.

The previous prime is 31575906101. The next prime is 31575906113. The reversal of 31575906112 is 21160957513.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31575906113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3469918 + ... + 3479005.

Almost surely, 2^31575906112 is an apocalyptic number.

31575906112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31575906112 is an abundant number, since it is smaller than the sum of its proper divisors (31965054944).

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

31575906112 is an equidigital number, since it uses as much as digits as its factorization.

31575906112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6949006 (or 6948996 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 40.

The spelling of 31575906112 in words is "thirty-one billion, five hundred seventy-five million, nine hundred six thousand, one hundred twelve".