312332019991 has 2 divisors, whose sum is σ = 312332019992. Its totient is φ = 312332019990.

The previous prime is 312332019959. The next prime is 312332020019. The reversal of 312332019991 is 199910233213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312332019991 - 2⁵ = 312332019959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312332019931) 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, 156166009995 + 156166009996.

It is an arithmetic number, because the mean of its divisors is an integer number (156166009996).

Almost surely, 2^312332019991 is an apocalyptic number.

312332019991 is a deficient number, since it is larger than the sum of its proper divisors (1).

312332019991 is an equidigital number, since it uses as much as digits as its factorization.

312332019991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78732, while the sum is 43.

The spelling of 312332019991 in words is "three hundred twelve billion, three hundred thirty-two million, nineteen thousand, nine hundred ninety-one".