312320071139 has 4 divisors (see below), whose sum is σ = 328757969640. Its totient is φ = 295882172640.

The previous prime is 312320071099. The next prime is 312320071153. The reversal of 312320071139 is 931170023213.

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 312320071139 - 2²⁰ = 312319022563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312320031139) 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, 8218949222 + ... + 8218949259.

It is an arithmetic number, because the mean of its divisors is an integer number (82189492410).

Almost surely, 2^312320071139 is an apocalyptic number.

312320071139 is a deficient number, since it is larger than the sum of its proper divisors (16437898501).

312320071139 is a wasteful number, since it uses less digits than its factorization.

312320071139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16437898500.

The product of its (nonzero) digits is 6804, while the sum is 32.

The spelling of 312320071139 in words is "three hundred twelve billion, three hundred twenty million, seventy-one thousand, one hundred thirty-nine".