31152533412 has 144 divisors (see below), whose sum is σ = 99339815232. Its totient is φ = 7469118720.

The previous prime is 31152533359. The next prime is 31152533413. The reversal of 31152533412 is 21433525113.

It is a self number, because there is not a number n which added to its sum of digits gives 31152533412.

It is not an unprimeable number, because it can be changed into a prime (31152533413) 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 47 ways as a sum of consecutive naturals, for example, 101163 + ... + 269330.

It is an arithmetic number, because the mean of its divisors is an integer number (689859828).

Almost surely, 2^31152533412 is an apocalyptic number.

It is an amenable number.

31152533412 is an abundant number, since it is smaller than the sum of its proper divisors (68187281820).

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

31152533412 is a wasteful number, since it uses less digits than its factorization.

31152533412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370538 (or 370529 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The spelling of 31152533412 in words is "thirty-one billion, one hundred fifty-two million, five hundred thirty-three thousand, four hundred twelve".