3112320131 has 4 divisors (see below), whose sum is σ = 3116945352. Its totient is φ = 3107694912.

The previous prime is 3112320109. The next prime is 3112320149. The reversal of 3112320131 is 1310232113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1310232113 = 47 ⋅27877279.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3112320131 is a prime.

It is a super-2 number, since 2×3112320131² = 19373073195655714322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3112320161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2311601 + ... + 2312946.

It is an arithmetic number, because the mean of its divisors is an integer number (779236338).

Almost surely, 2^3112320131 is an apocalyptic number.

3112320131 is a deficient number, since it is larger than the sum of its proper divisors (4625221).

3112320131 is an equidigital number, since it uses as much as digits as its factorization.

3112320131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4625220.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3112320131 is about 55788.1719632397. The cubic root of 3112320131 is about 1460.0287932959.

Adding to 3112320131 its reverse (1310232113), we get a palindrome (4422552244).

The spelling of 3112320131 in words is "three billion, one hundred twelve million, three hundred twenty thousand, one hundred thirty-one".