312212400242999 has 2 divisors, whose sum is σ = 312212400243000. Its totient is φ = 312212400242998.

The previous prime is 312212400242993. The next prime is 312212400243173. The reversal of 312212400242999 is 999242004212213.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312212400242999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312212400242993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156106200121499 + 156106200121500.

It is an arithmetic number, because the mean of its divisors is an integer number (156106200121500).

Almost surely, 2^{312212400242999} is an apocalyptic number.

312212400242999 is a deficient number, since it is larger than the sum of its proper divisors (1).

312212400242999 is an equidigital number, since it uses as much as digits as its factorization.

312212400242999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 312212400242999 in words is "three hundred twelve trillion, two hundred twelve billion, four hundred million, two hundred forty-two thousand, nine hundred ninety-nine".