31032637212 has 24 divisors (see below), whose sum is σ = 72421549200. Its totient is φ = 10342489216.

The previous prime is 31032637201. The next prime is 31032637241. The reversal of 31032637212 is 21273623013.

It is a self number, because there is not a number n which added to its sum of digits gives 31032637212.

It is a congruent number.

It is an unprimeable number.

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, 139287 + ... + 285422.

It is an arithmetic number, because the mean of its divisors is an integer number (3017564550).

Almost surely, 2^31032637212 is an apocalyptic number.

It is an amenable number.

31032637212 is an abundant number, since it is smaller than the sum of its proper divisors (41388911988).

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

31032637212 is a wasteful number, since it uses less digits than its factorization.

31032637212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430805 (or 430803 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The spelling of 31032637212 in words is "thirty-one billion, thirty-two million, six hundred thirty-seven thousand, two hundred twelve".