2331313320 has 128 divisors (see below), whose sum is σ = 8041420800. Its totient is φ = 529648896.

The previous prime is 2331313297. The next prime is 2331313333. The reversal of 2331313320 is 233131332.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131971 + ... + 148589.

It is an arithmetic number, because the mean of its divisors is an integer number (62823600).

Almost surely, 2^2331313320 is an apocalyptic number.

2331313320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2331313320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4020710400).

2331313320 is an abundant number, since it is smaller than the sum of its proper divisors (5710107480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2331313320 is a wasteful number, since it uses less digits than its factorization.

2331313320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16807 (or 16803 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 2331313320 is about 48283.6755021819. The cubic root of 2331313320 is about 1325.9695421936.

Adding to 2331313320 its reverse (233131332), we get a palindrome (2564444652).

The spelling of 2331313320 in words is "two billion, three hundred thirty-one million, three hundred thirteen thousand, three hundred twenty".