31112110988 has 12 divisors (see below), whose sum is σ = 62224222032. Its totient is φ = 13333761840.

The previous prime is 31112110987. The next prime is 31112111011. The reversal of 31112110988 is 88901121113.

31112110988 is an admirable number.

It is a super-2 number, since 2×31112110988² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (31112110987) 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 3 ways as a sum of consecutive naturals, for example, 555573383 + ... + 555573438.

It is an arithmetic number, because the mean of its divisors is an integer number (5185351836).

Almost surely, 2^31112110988 is an apocalyptic number.

It is an amenable number.

31112110988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31112110988 is a wasteful number, since it uses less digits than its factorization.

31112110988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111146832 (or 1111146830 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 35.

The spelling of 31112110988 in words is "thirty-one billion, one hundred twelve million, one hundred ten thousand, nine hundred eighty-eight".