312322320319 has 4 divisors (see below), whose sum is σ = 313662759696. Its totient is φ = 310981880944.

The previous prime is 312322320293. The next prime is 312322320433. The reversal of 312322320319 is 913023223213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 913023223213 = 70951 ⋅12868363.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312322320319 is a prime.

It is a super-2 number, since 2×312322320319² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312322300319) 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, 670219339 + ... + 670219804.

It is an arithmetic number, because the mean of its divisors is an integer number (78415689924).

Almost surely, 2^312322320319 is an apocalyptic number.

312322320319 is a deficient number, since it is larger than the sum of its proper divisors (1340439377).

312322320319 is a wasteful number, since it uses less digits than its factorization.

312322320319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340439376.

The product of its (nonzero) digits is 11664, while the sum is 31.

The spelling of 312322320319 in words is "three hundred twelve billion, three hundred twenty-two million, three hundred twenty thousand, three hundred nineteen".