321313031013 has 16 divisors (see below), whose sum is σ = 461559713216. Its totient is φ = 197650886400.

The previous prime is 321313030933. The next prime is 321313031033. The reversal of 321313031013 is 310130313123.

It is not a de Polignac number, because 321313031013 - 2⁸ = 321313030757 is a prime.

It is a super-2 number, since 2×321313031013² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321313031033) 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, 1573588 + ... + 1766013.

It is an arithmetic number, because the mean of its divisors is an integer number (28847482076).

Almost surely, 2^321313031013 is an apocalyptic number.

It is an amenable number.

321313031013 is a deficient number, since it is larger than the sum of its proper divisors (140246682203).

321313031013 is a wasteful number, since it uses less digits than its factorization.

321313031013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3342084.

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

Adding to 321313031013 its reverse (310130313123), we get a palindrome (631443344136).

The spelling of 321313031013 in words is "three hundred twenty-one billion, three hundred thirteen million, thirty-one thousand, thirteen".