312031013191 has 2 divisors, whose sum is σ = 312031013192. Its totient is φ = 312031013190.

The previous prime is 312031013141. The next prime is 312031013207. The reversal of 312031013191 is 191310130213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312031013191 - 2¹⁵ = 312030980423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312031013141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156015506595 + 156015506596.

It is an arithmetic number, because the mean of its divisors is an integer number (156015506596).

Almost surely, 2^312031013191 is an apocalyptic number.

312031013191 is a deficient number, since it is larger than the sum of its proper divisors (1).

312031013191 is an equidigital number, since it uses as much as digits as its factorization.

312031013191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 25.

The spelling of 312031013191 in words is "three hundred twelve billion, thirty-one million, thirteen thousand, one hundred ninety-one".