313322013 has 14 divisors (see below), whose sum is σ = 469769214. Its totient is φ = 208880856.

The previous prime is 313322011. The next prime is 313322017. The reversal of 313322013 is 310223313.

It can be written as a sum of positive squares in only one way, i.e., 177902244 + 135419769 = 13338^2 + 11637^2 .

It is not a de Polignac number, because 313322013 - 2¹ = 313322011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313322011) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 214170 + ... + 215627.

Almost surely, 2^313322013 is an apocalyptic number.

It is an amenable number.

313322013 is a deficient number, since it is larger than the sum of its proper divisors (156447201).

313322013 is an frugal number, since it uses more digits than its factorization.

313322013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429815 (or 429800 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 313322013 is about 17700.9042989334. The cubic root of 313322013 is about 679.1988929485.

Adding to 313322013 its reverse (310223313), we get a palindrome (623545326).

The spelling of 313322013 in words is "three hundred thirteen million, three hundred twenty-two thousand, thirteen".