312110320139 has 2 divisors, whose sum is σ = 312110320140. Its totient is φ = 312110320138.

The previous prime is 312110320087. The next prime is 312110320141. The reversal of 312110320139 is 931023011213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312110320139 - 2⁸ = 312110319883 is a prime.

Together with 312110320141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (312110380139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156055160069 + 156055160070.

It is an arithmetic number, because the mean of its divisors is an integer number (156055160070).

Almost surely, 2^312110320139 is an apocalyptic number.

312110320139 is a deficient number, since it is larger than the sum of its proper divisors (1).

312110320139 is an equidigital number, since it uses as much as digits as its factorization.

312110320139 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 26.

The spelling of 312110320139 in words is "three hundred twelve billion, one hundred ten million, three hundred twenty thousand, one hundred thirty-nine".