312322032313 has 4 divisors (see below), whose sum is σ = 316275475840. Its totient is φ = 308368588788.

The previous prime is 312322032293. The next prime is 312322032361. The reversal of 312322032313 is 313230223213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313230223213 = 83 ⋅3773858111.

It is a cyclic number.

It is not a de Polignac number, because 312322032313 - 2²⁵ = 312288477881 is a prime.

It is a super-2 number, since 2×312322032313² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312322032013) 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, 1976721645 + ... + 1976721802.

It is an arithmetic number, because the mean of its divisors is an integer number (79068868960).

Almost surely, 2^312322032313 is an apocalyptic number.

It is an amenable number.

312322032313 is a deficient number, since it is larger than the sum of its proper divisors (3953443527).

312322032313 is an equidigital number, since it uses as much as digits as its factorization.

312322032313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3953443526.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 312322032313 its reverse (313230223213), we get a palindrome (625552255526).

The spelling of 312322032313 in words is "three hundred twelve billion, three hundred twenty-two million, thirty-two thousand, three hundred thirteen".