313331013 has 12 divisors (see below), whose sum is σ = 454262848. Its totient is φ = 208114920.

The previous prime is 313331003. The next prime is 313331041. The reversal of 313331013 is 310133313.

It is a de Polignac number, because none of the positive numbers 2^k-313331013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313331003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61795 + ... + 66672.

Almost surely, 2^313331013 is an apocalyptic number.

It is an amenable number.

313331013 is a deficient number, since it is larger than the sum of its proper divisors (140931835).

313331013 is a wasteful number, since it uses less digits than its factorization.

313331013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128744 (or 128741 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 18.

The square root of 313331013 is about 17701.1585214076. The cubic root of 313331013 is about 679.2053960893.

Adding to 313331013 its reverse (310133313), we get a palindrome (623464326).

The spelling of 313331013 in words is "three hundred thirteen million, three hundred thirty-one thousand, thirteen".