2331321312 has 24 divisors (see below), whose sum is σ = 6119718696. Its totient is φ = 777107072.

The previous prime is 2331321287. The next prime is 2331321313. The reversal of 2331321312 is 2131231332.

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331321313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12142203 + ... + 12142394.

It is an arithmetic number, because the mean of its divisors is an integer number (254988279).

Almost surely, 2^2331321312 is an apocalyptic number.

It is an amenable number.

2331321312 is an abundant number, since it is smaller than the sum of its proper divisors (3788397384).

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

2331321312 is a wasteful number, since it uses less digits than its factorization.

2331321312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24284610 (or 24284602 counting only the distinct ones).

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

The square root of 2331321312 is about 48283.7582630019. The cubic root of 2331321312 is about 1325.9710573819.

Adding to 2331321312 its reverse (2131231332), we get a palindrome (4462552644).

The spelling of 2331321312 in words is "two billion, three hundred thirty-one million, three hundred twenty-one thousand, three hundred twelve".