313013233121 has 4 divisors (see below), whose sum is σ = 313719809712. Its totient is φ = 312306656532.

The previous prime is 313013233109. The next prime is 313013233151. The reversal of 313013233121 is 121332310313.

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 313013233121 - 2¹⁰ = 313013232097 is a prime.

It is a super-2 number, since 2×313013233121² (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 (313013233151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353287631 + ... + 353288516.

It is an arithmetic number, because the mean of its divisors is an integer number (78429952428).

Almost surely, 2^313013233121 is an apocalyptic number.

It is an amenable number.

313013233121 is a deficient number, since it is larger than the sum of its proper divisors (706576591).

313013233121 is an equidigital number, since it uses as much as digits as its factorization.

313013233121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706576590.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 313013233121 its reverse (121332310313), we get a palindrome (434345543434).

The spelling of 313013233121 in words is "three hundred thirteen billion, thirteen million, two hundred thirty-three thousand, one hundred twenty-one".