313323232321 has 12 divisors (see below), whose sum is σ = 347806491732. Its totient is φ = 282019100000.

The previous prime is 313323232309. The next prime is 313323232331. The reversal of 313323232321 is 123232323313.

It can be written as a sum of positive squares in 2 ways, for example, as 177725480625 + 135597751696 = 421575^2 + 368236^2 .

It is not a de Polignac number, because 313323232321 - 2⁵ = 313323232289 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313323232321.

It is not an unprimeable number, because it can be changed into a prime (313323232331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12806830 + ... + 12831271.

It is an arithmetic number, because the mean of its divisors is an integer number (28983874311).

Almost surely, 2^313323232321 is an apocalyptic number.

It is an amenable number.

313323232321 is a deficient number, since it is larger than the sum of its proper divisors (34483259411).

313323232321 is a wasteful number, since it uses less digits than its factorization.

313323232321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25638224 (or 25638213 counting only the distinct ones).

The product of its digits is 11664, while the sum is 28.

Adding to 313323232321 its reverse (123232323313), we get a palindrome (436555555634).

The spelling of 313323232321 in words is "three hundred thirteen billion, three hundred twenty-three million, two hundred thirty-two thousand, three hundred twenty-one".