2331320311 has 24 divisors (see below), whose sum is σ = 2602309248. Its totient is φ = 2084832000.

The previous prime is 2331320297. The next prime is 2331320317. The reversal of 2331320311 is 1130231332.

It is not a de Polignac number, because 2331320311 - 2⁷ = 2331320183 is a prime.

It is a super-2 number, since 2×2331320311² = 10870108784962273442, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331320317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 456291 + ... + 461371.

It is an arithmetic number, because the mean of its divisors is an integer number (108429552).

Almost surely, 2^2331320311 is an apocalyptic number.

2331320311 is a deficient number, since it is larger than the sum of its proper divisors (270988937).

2331320311 is a wasteful number, since it uses less digits than its factorization.

2331320311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5191 (or 5172 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2331320311 is about 48283.7478971962. The cubic root of 2331320311 is about 1325.9708676044.

Adding to 2331320311 its reverse (1130231332), we get a palindrome (3461551643).

The spelling of 2331320311 in words is "two billion, three hundred thirty-one million, three hundred twenty thousand, three hundred eleven".