31032310110312 has 64 divisors (see below), whose sum is σ = 89492376337920. Its totient is φ = 8783511000768.

The previous prime is 31032310110239. The next prime is 31032310110317. The reversal of 31032310110312 is 21301101323013.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (31032310110317) 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 15 ways as a sum of consecutive naturals, for example, 863141518 + ... + 863177469.

It is an arithmetic number, because the mean of its divisors is an integer number (1398318380280).

Almost surely, 2^{31032310110312} is an apocalyptic number.

It is an amenable number.

31032310110312 is an abundant number, since it is smaller than the sum of its proper divisors (58460066227608).

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

31032310110312 is a wasteful number, since it uses less digits than its factorization.

31032310110312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726319110 (or 1726319106 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 31032310110312 its reverse (21301101323013), we get a palindrome (52333411433325).

The spelling of 31032310110312 in words is "thirty-one trillion, thirty-two billion, three hundred ten million, one hundred ten thousand, three hundred twelve".