31310440112 has 40 divisors (see below), whose sum is σ = 69374893056. Its totient is φ = 13410121536.

The previous prime is 31310440099. The next prime is 31310440123. The reversal of 31310440112 is 21104401313.

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, 86303 + ... + 264705.

Almost surely, 2^31310440112 is an apocalyptic number.

It is an amenable number.

31310440112 is an abundant number, since it is smaller than the sum of its proper divisors (38064452944).

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

31310440112 is a wasteful number, since it uses less digits than its factorization.

31310440112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179985 (or 179979 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31310440112 its reverse (21104401313), we get a palindrome (52414841425).

The spelling of 31310440112 in words is "thirty-one billion, three hundred ten million, four hundred forty thousand, one hundred twelve".