312310303231 has 2 divisors, whose sum is σ = 312310303232. Its totient is φ = 312310303230.

The previous prime is 312310303223. The next prime is 312310303237. The reversal of 312310303231 is 132303013213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312310303231 - 2³ = 312310303223 is a prime.

It is a super-2 number, since 2×312310303231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312310303237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156155151615 + 156155151616.

It is an arithmetic number, because the mean of its divisors is an integer number (156155151616).

Almost surely, 2^312310303231 is an apocalyptic number.

312310303231 is a deficient number, since it is larger than the sum of its proper divisors (1).

312310303231 is an equidigital number, since it uses as much as digits as its factorization.

312310303231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 312310303231 its reverse (132303013213), we get a palindrome (444613316444).

The spelling of 312310303231 in words is "three hundred twelve billion, three hundred ten million, three hundred three thousand, two hundred thirty-one".