31117444092 has 72 divisors (see below), whose sum is σ = 90140051456. Its totient is φ = 8866446624.

The previous prime is 31117444081. The next prime is 31117444097. The reversal of 31117444092 is 29044471113.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31117444097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75748 + ... + 260715.

Almost surely, 2^31117444092 is an apocalyptic number.

It is an amenable number.

31117444092 is an abundant number, since it is smaller than the sum of its proper divisors (59022607364).

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

31117444092 is a wasteful number, since it uses less digits than its factorization.

31117444092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336847 (or 336842 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 31117444092 in words is "thirty-one billion, one hundred seventeen million, four hundred forty-four thousand, ninety-two".