31505152412 has 6 divisors (see below), whose sum is σ = 55134016728. Its totient is φ = 15752576204.

The previous prime is 31505152387. The next prime is 31505152421. The reversal of 31505152412 is 21425150513.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3938144048 + ... + 3938144055.

It is an arithmetic number, because the mean of its divisors is an integer number (9189002788).

Almost surely, 2^31505152412 is an apocalyptic number.

It is an amenable number.

31505152412 is a deficient number, since it is larger than the sum of its proper divisors (23628864316).

31505152412 is a wasteful number, since it uses less digits than its factorization.

31505152412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7876288107 (or 7876288105 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 31505152412 in words is "thirty-one billion, five hundred five million, one hundred fifty-two thousand, four hundred twelve".