31112033312 has 48 divisors (see below), whose sum is σ = 61978452480. Its totient is φ = 15371693568.

The previous prime is 31112033297. The next prime is 31112033371. The reversal of 31112033312 is 21333021113.

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, 7536593 + ... + 7540719.

It is an arithmetic number, because the mean of its divisors is an integer number (1291217760).

Almost surely, 2^31112033312 is an apocalyptic number.

31112033312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31112033312 is a deficient number, since it is larger than the sum of its proper divisors (30866419168).

31112033312 is a wasteful number, since it uses less digits than its factorization.

31112033312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6873 (or 6865 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31112033312 its reverse (21333021113), we get a palindrome (52445054425).

The spelling of 31112033312 in words is "thirty-one billion, one hundred twelve million, thirty-three thousand, three hundred twelve".