31158141012 has 36 divisors (see below), whose sum is σ = 79017434496. Its totient is φ = 10352212560.

The previous prime is 31158140999. The next prime is 31158141031. The reversal of 31158141012 is 21014185113.

31158141012 is a `hidden beast` number, since 31 + 1 + 581 + 41 + 0 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1398564 + ... + 1420667.

It is an arithmetic number, because the mean of its divisors is an integer number (2194928736).

Almost surely, 2^31158141012 is an apocalyptic number.

It is an amenable number.

31158141012 is an abundant number, since it is smaller than the sum of its proper divisors (47859293484).

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

31158141012 is a wasteful number, since it uses less digits than its factorization.

31158141012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819548 (or 2819543 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The spelling of 31158141012 in words is "thirty-one billion, one hundred fifty-eight million, one hundred forty-one thousand, twelve".