312023012131 has 2 divisors, whose sum is σ = 312023012132. Its totient is φ = 312023012130.

The previous prime is 312023012123. The next prime is 312023012173. The reversal of 312023012131 is 131210320213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312023012131 - 2³ = 312023012123 is a prime.

It is a super-2 number, since 2×312023012131² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312023012099 and 312023012108.

It is not a weakly prime, because it can be changed into another prime (312023012531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156011506065 + 156011506066.

It is an arithmetic number, because the mean of its divisors is an integer number (156011506066).

Almost surely, 2^312023012131 is an apocalyptic number.

312023012131 is a deficient number, since it is larger than the sum of its proper divisors (1).

312023012131 is an equidigital number, since it uses as much as digits as its factorization.

312023012131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312023012131 its reverse (131210320213), we get a palindrome (443233332344).

The spelling of 312023012131 in words is "three hundred twelve billion, twenty-three million, twelve thousand, one hundred thirty-one".