31042304120 has 64 divisors (see below), whose sum is σ = 76056516000. Its totient is φ = 11357756928.

The previous prime is 31042304093. The next prime is 31042304173. The reversal of 31042304120 is 2140324013.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 31042304092 and 31042304101.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 682187 + ... + 726266.

Almost surely, 2^31042304120 is an apocalyptic number.

It is an amenable number.

31042304120 is an abundant number, since it is smaller than the sum of its proper divisors (45014211880).

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

31042304120 is a wasteful number, since it uses less digits than its factorization.

31042304120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408512 (or 1408508 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31042304120 its reverse (2140324013), we get a palindrome (33182628133).

The spelling of 31042304120 in words is "thirty-one billion, forty-two million, three hundred four thousand, one hundred twenty".