313123133321 has 8 divisors (see below), whose sum is σ = 313750854144. Its totient is φ = 312495955200.

The previous prime is 313123133303. The next prime is 313123133327. The reversal of 313123133321 is 123331321313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313123133321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (313123133327) 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, 1029416 + ... + 1298438.

It is an arithmetic number, because the mean of its divisors is an integer number (39218856768).

Almost surely, 2^313123133321 is an apocalyptic number.

It is an amenable number.

313123133321 is a deficient number, since it is larger than the sum of its proper divisors (627720823).

313123133321 is a wasteful number, since it uses less digits than its factorization.

313123133321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271351.

The product of its digits is 2916, while the sum is 26.

Adding to 313123133321 its reverse (123331321313), we get a palindrome (436454454634).

The spelling of 313123133321 in words is "three hundred thirteen billion, one hundred twenty-three million, one hundred thirty-three thousand, three hundred twenty-one".