312040543999 has 2 divisors, whose sum is σ = 312040544000. Its totient is φ = 312040543998.

The previous prime is 312040543973. The next prime is 312040544009. The reversal of 312040543999 is 999345040213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312040543999 - 2⁵ = 312040543967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312040543909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156020271999 + 156020272000.

It is an arithmetic number, because the mean of its divisors is an integer number (156020272000).

Almost surely, 2^312040543999 is an apocalyptic number.

312040543999 is a deficient number, since it is larger than the sum of its proper divisors (1).

312040543999 is an equidigital number, since it uses as much as digits as its factorization.

312040543999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1049760, while the sum is 49.

The spelling of 312040543999 in words is "three hundred twelve billion, forty million, five hundred forty-three thousand, nine hundred ninety-nine".