2331320404 has 48 divisors (see below), whose sum is σ = 4828988416. Its totient is φ = 963705600.

The previous prime is 2331320401. The next prime is 2331320413. The reversal of 2331320404 is 4040231332.

It is a happy number.

It is a super-2 number, since 2×2331320404² = 10870109652213446432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331320401) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 267394 + ... + 275974.

Almost surely, 2^2331320404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2331320404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2414494208).

2331320404 is an abundant number, since it is smaller than the sum of its proper divisors (2497668012).

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

2331320404 is a wasteful number, since it uses less digits than its factorization.

2331320404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8936 (or 8934 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 2331320404 is about 48283.7488602532. The cubic root of 2331320404 is about 1325.9708852361.

Adding to 2331320404 its reverse (4040231332), we get a palindrome (6371551736).

The spelling of 2331320404 in words is "two billion, three hundred thirty-one million, three hundred twenty thousand, four hundred four".