312313030231 has 2 divisors, whose sum is σ = 312313030232. Its totient is φ = 312313030230.

The previous prime is 312313030181. The next prime is 312313030241. The reversal of 312313030231 is 132030313213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312313030231 - 2⁹ = 312313029719 is a prime.

It is a super-2 number, since 2×312313030231² (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 (312313030241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156156515115 + 156156515116.

It is an arithmetic number, because the mean of its divisors is an integer number (156156515116).

Almost surely, 2^312313030231 is an apocalyptic number.

312313030231 is a deficient number, since it is larger than the sum of its proper divisors (1).

312313030231 is an equidigital number, since it uses as much as digits as its factorization.

312313030231 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 312313030231 its reverse (132030313213), we get a palindrome (444343343444).

The spelling of 312313030231 in words is "three hundred twelve billion, three hundred thirteen million, thirty thousand, two hundred thirty-one".