31036072212 has 48 divisors (see below), whose sum is σ = 83962327680. Its totient is φ = 9895558464.

The previous prime is 31036072183. The next prime is 31036072217. The reversal of 31036072212 is 21227063013.

31036072212 is a `hidden beast` number, since 31 + 0 + 3 + 607 + 2 + 21 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31036072217) by changing a digit.

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, 6244713 + ... + 6249680.

It is an arithmetic number, because the mean of its divisors is an integer number (1749215160).

Almost surely, 2^31036072212 is an apocalyptic number.

It is an amenable number.

31036072212 is an abundant number, since it is smaller than the sum of its proper divisors (52926255468).

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

31036072212 is a wasteful number, since it uses less digits than its factorization.

31036072212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12494429 (or 12494421 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The spelling of 31036072212 in words is "thirty-one billion, thirty-six million, seventy-two thousand, two hundred twelve".