312023131 has 12 divisors (see below), whose sum is σ = 363265560. Its totient is φ = 267227520.

The previous prime is 312023119. The next prime is 312023143. The reversal of 312023131 is 131320213.

It is an interprime number because it is at equal distance from previous prime (312023119) and next prime (312023143).

It is not a de Polignac number, because 312023131 - 2⁷ = 312023003 is a prime.

It is a super-2 number, since 2×312023131² = 194716868558086322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (312023191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90876 + ... + 94246.

It is an arithmetic number, because the mean of its divisors is an integer number (30272130).

Almost surely, 2^312023131 is an apocalyptic number.

312023131 is a deficient number, since it is larger than the sum of its proper divisors (51242429).

312023131 is a wasteful number, since it uses less digits than its factorization.

312023131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5274 (or 5267 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 312023131 is about 17664.1764880223. The cubic root of 312023131 is about 678.2590493237.

Adding to 312023131 its reverse (131320213), we get a palindrome (443343344).

The spelling of 312023131 in words is "three hundred twelve million, twenty-three thousand, one hundred thirty-one".