312012431999 has 8 divisors (see below), whose sum is σ = 326605258080. Its totient is φ = 297505194976.

The previous prime is 312012431909. The next prime is 312012432013. The reversal of 312012431999 is 999134210213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312012431999 - 2²⁴ = 311995654783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312012431909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21389804 + ... + 21404385.

It is an arithmetic number, because the mean of its divisors is an integer number (40825657260).

Almost surely, 2^312012431999 is an apocalyptic number.

312012431999 is a deficient number, since it is larger than the sum of its proper divisors (14592826081).

312012431999 is a wasteful number, since it uses less digits than its factorization.

312012431999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42794529.

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 312012431999 in words is "three hundred twelve billion, twelve million, four hundred thirty-one thousand, nine hundred ninety-nine".