313133310121 has 8 divisors (see below), whose sum is σ = 323943139080. Its totient is φ = 302324289792.

The previous prime is 313133310097. The next prime is 313133310131. The reversal of 313133310121 is 121013331313.

It can be written as a sum of positive squares in 4 ways, for example, as 114162894400 + 198970415721 = 337880^2 + 446061^2 .

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-313133310121 is a prime.

It is a super-2 number, since 2×313133310121² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313133310092 and 313133310101.

It is not an unprimeable number, because it can be changed into a prime (313133310131) 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, 646071 + ... + 1021603.

It is an arithmetic number, because the mean of its divisors is an integer number (40492892385).

Almost surely, 2^313133310121 is an apocalyptic number.

It is an amenable number.

313133310121 is a deficient number, since it is larger than the sum of its proper divisors (10809828959).

313133310121 is a wasteful number, since it uses less digits than its factorization.

313133310121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404315.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 313133310121 its reverse (121013331313), we get a palindrome (434146641434).

The spelling of 313133310121 in words is "three hundred thirteen billion, one hundred thirty-three million, three hundred ten thousand, one hundred twenty-one".