313003133121 has 16 divisors (see below), whose sum is σ = 477742936064. Its totient is φ = 178564265424.

The previous prime is 313003133111. The next prime is 313003133137. The reversal of 313003133121 is 121331300313.

It is not a de Polignac number, because 313003133121 - 2⁶ = 313003133057 is a prime.

It is a super-2 number, since 2×313003133121² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313003133111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12264775 + ... + 12290268.

It is an arithmetic number, because the mean of its divisors is an integer number (29858933504).

Almost surely, 2^313003133121 is an apocalyptic number.

It is an amenable number.

313003133121 is a deficient number, since it is larger than the sum of its proper divisors (164739802943).

313003133121 is a wasteful number, since it uses less digits than its factorization.

313003133121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24555660.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 313003133121 its reverse (121331300313), we get a palindrome (434334433434).

The spelling of 313003133121 in words is "three hundred thirteen billion, three million, one hundred thirty-three thousand, one hundred twenty-one".