31008871032 has 64 divisors (see below), whose sum is σ = 80921064960. Its totient is φ = 9883420800.

The previous prime is 31008871001. The next prime is 31008871087. The reversal of 31008871032 is 23017880013.

It is a junction number, because it is equal to n+sod(n) for n = 31008870984 and 31008871002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1902357 + ... + 1918587.

It is an arithmetic number, because the mean of its divisors is an integer number (1264391640).

Almost surely, 2^31008871032 is an apocalyptic number.

It is an amenable number.

31008871032 is an abundant number, since it is smaller than the sum of its proper divisors (49912193928).

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

31008871032 is a wasteful number, since it uses less digits than its factorization.

31008871032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19724 (or 19720 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The spelling of 31008871032 in words is "thirty-one billion, eight million, eight hundred seventy-one thousand, thirty-two".