320113311331 has 16 divisors (see below), whose sum is σ = 353273961600. Its totient is φ = 287631748800.

The previous prime is 320113311317. The next prime is 320113311337. The reversal of 320113311331 is 133113311023.

It is not a de Polignac number, because 320113311331 - 2¹¹ = 320113309283 is a prime.

It is a super-2 number, since 2×320113311331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320113311337) 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, 2541676 + ... + 2664646.

It is an arithmetic number, because the mean of its divisors is an integer number (22079622600).

Almost surely, 2^320113311331 is an apocalyptic number.

320113311331 is a deficient number, since it is larger than the sum of its proper divisors (33160650269).

320113311331 is a wasteful number, since it uses less digits than its factorization.

320113311331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125730.

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

Adding to 320113311331 its reverse (133113311023), we get a palindrome (453226622354).

The spelling of 320113311331 in words is "three hundred twenty billion, one hundred thirteen million, three hundred eleven thousand, three hundred thirty-one".