312322155407 has 4 divisors (see below), whose sum is σ = 312326366496. Its totient is φ = 312317944320.

The previous prime is 312322155391. The next prime is 312322155499. The reversal of 312322155407 is 704551223213.

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

It is a cyclic number.

It is not a de Polignac number, because 312322155407 - 2⁴ = 312322155391 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 (312322155107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1992263 + ... + 2143304.

It is an arithmetic number, because the mean of its divisors is an integer number (78081591624).

Almost surely, 2^312322155407 is an apocalyptic number.

312322155407 is a deficient number, since it is larger than the sum of its proper divisors (4211089).

312322155407 is an equidigital number, since it uses as much as digits as its factorization.

312322155407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211088.

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 312322155407 in words is "three hundred twelve billion, three hundred twenty-two million, one hundred fifty-five thousand, four hundred seven".