31000253012008 has 32 divisors (see below), whose sum is σ = 70336708516800. Its totient is φ = 12504303735552.

The previous prime is 31000253011999. The next prime is 31000253012009. The reversal of 31000253012008 is 80021035200013.

It is a super-2 number, since 2×31000253012008² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31000253012009) 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 7 ways as a sum of consecutive naturals, for example, 16281644538 + ... + 16281646441.

It is an arithmetic number, because the mean of its divisors is an integer number (2198022141150).

Almost surely, 2^{31000253012008} is an apocalyptic number.

It is an amenable number.

31000253012008 is an abundant number, since it is smaller than the sum of its proper divisors (39336455504792).

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

31000253012008 is a wasteful number, since it uses less digits than its factorization.

31000253012008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32563291009 (or 32563291005 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The spelling of 31000253012008 in words is "thirty-one trillion, two hundred fifty-three million, twelve thousand, eight".