9120312131 has 24 divisors (see below), whose sum is σ = 10762165440. Its totient is φ = 7705152000.

The previous prime is 9120312121. The next prime is 9120312161. The reversal of 9120312131 is 1312130219.

It is not a de Polignac number, because 9120312131 - 2⁶ = 9120312067 is a prime.

It is a super-2 number, since 2×9120312131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9120312097 and 9120312106.

It is not an unprimeable number, because it can be changed into a prime (9120312121) 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 23 ways as a sum of consecutive naturals, for example, 2711891 + ... + 2715251.

It is an arithmetic number, because the mean of its divisors is an integer number (448423560).

Almost surely, 2^9120312131 is an apocalyptic number.

9120312131 is a deficient number, since it is larger than the sum of its proper divisors (1641853309).

9120312131 is a wasteful number, since it uses less digits than its factorization.

9120312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155 (or 4148 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 9120312131 is about 95500.3252926397. The cubic root of 9120312131 is about 2089.3116885886.

The spelling of 9120312131 in words is "nine billion, one hundred twenty million, three hundred twelve thousand, one hundred thirty-one".