312442522399 has 4 divisors (see below), whose sum is σ = 357077168464. Its totient is φ = 267807876336.

The previous prime is 312442522391. The next prime is 312442522411. The reversal of 312442522399 is 993225244213.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 312442522399 - 2³ = 312442522391 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 (312442522391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22317323022 + ... + 22317323035.

It is an arithmetic number, because the mean of its divisors is an integer number (89269292116).

Almost surely, 2^312442522399 is an apocalyptic number.

312442522399 is a deficient number, since it is larger than the sum of its proper divisors (44634646065).

312442522399 is an equidigital number, since it uses as much as digits as its factorization.

312442522399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44634646064.

The product of its digits is 933120, while the sum is 46.

The spelling of 312442522399 in words is "three hundred twelve billion, four hundred forty-two million, five hundred twenty-two thousand, three hundred ninety-nine".