313223040322321 has 4 divisors (see below), whose sum is σ = 329708463497200. Its totient is φ = 296737617147444.

The previous prime is 313223040322319. The next prime is 313223040322343. The reversal of 313223040322321 is 123223040322313.

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.

It is a cyclic number.

It is not a de Polignac number, because 313223040322321 - 2¹ = 313223040322319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313223040322301) 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, 8242711587411 + ... + 8242711587448.

It is an arithmetic number, because the mean of its divisors is an integer number (82427115874300).

Almost surely, 2^{313223040322321} is an apocalyptic number.

It is an amenable number.

313223040322321 is a deficient number, since it is larger than the sum of its proper divisors (16485423174879).

313223040322321 is a wasteful number, since it uses less digits than its factorization.

313223040322321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16485423174878.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 313223040322321 its reverse (123223040322313), we get a palindrome (436446080644634).

The spelling of 313223040322321 in words is "three hundred thirteen trillion, two hundred twenty-three billion, forty million, three hundred twenty-two thousand, three hundred twenty-one".