2313321231 has 16 divisors (see below), whose sum is σ = 3496519040. Its totient is φ = 1348656480.

The previous prime is 2313321221. The next prime is 2313321251. The reversal of 2313321231 is 1321233132.

It is not a de Polignac number, because 2313321231 - 2⁷ = 2313321103 is a prime.

It is a super-2 number, since 2×2313321231² = 10702910235590710722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2313321198 and 2313321207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313321211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1560205 + ... + 1561686.

It is an arithmetic number, because the mean of its divisors is an integer number (218532440).

Almost surely, 2^2313321231 is an apocalyptic number.

2313321231 is a deficient number, since it is larger than the sum of its proper divisors (1183197809).

2313321231 is a wasteful number, since it uses less digits than its factorization.

2313321231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121926.

The product of its digits is 648, while the sum is 21.

The square root of 2313321231 is about 48096.9981495727. The cubic root of 2313321231 is about 1322.5496387780.

Adding to 2313321231 its reverse (1321233132), we get a palindrome (3634554363).

The spelling of 2313321231 in words is "two billion, three hundred thirteen million, three hundred twenty-one thousand, two hundred thirty-one".