313023133321 has 8 divisors (see below), whose sum is σ = 323826478920. Its totient is φ = 302220417408.

The previous prime is 313023133259. The next prime is 313023133331. The reversal of 313023133321 is 123331320313.

It can be written as a sum of positive squares in 4 ways, for example, as 78826177600 + 234196955721 = 280760^2 + 483939^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313023133321 - 2⁹ = 313023132809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313023133331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 997725 + ... + 1273381.

It is an arithmetic number, because the mean of its divisors is an integer number (40478309865).

Almost surely, 2^313023133321 is an apocalyptic number.

It is an amenable number.

313023133321 is a deficient number, since it is larger than the sum of its proper divisors (10803345599).

313023133321 is a wasteful number, since it uses less digits than its factorization.

313023133321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314843.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 313023133321 its reverse (123331320313), we get a palindrome (436354453634).

The spelling of 313023133321 in words is "three hundred thirteen billion, twenty-three million, one hundred thirty-three thousand, three hundred twenty-one".