31250445212 has 36 divisors (see below), whose sum is σ = 63653252040. Its totient is φ = 13385411424.

The previous prime is 31250445169. The next prime is 31250445223. The reversal of 31250445212 is 21254405213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 306083 + ... + 395205.

It is an arithmetic number, because the mean of its divisors is an integer number (1768145890).

Almost surely, 2^31250445212 is an apocalyptic number.

It is an amenable number.

31250445212 is an abundant number, since it is smaller than the sum of its proper divisors (32402806828).

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

31250445212 is a wasteful number, since it uses less digits than its factorization.

31250445212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90930 (or 90921 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 31250445212 in words is "thirty-one billion, two hundred fifty million, four hundred forty-five thousand, two hundred twelve".