2313121332 has 48 divisors (see below), whose sum is σ = 5699677760. Its totient is φ = 728103168.

The previous prime is 2313121319. The next prime is 2313121357. The reversal of 2313121332 is 2331213132.

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

It is a junction number, because it is equal to n+sod(n) for n = 2313121299 and 2313121308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55158 + ... + 87570.

Almost surely, 2^2313121332 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 2313121332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2849838880).

2313121332 is an abundant number, since it is smaller than the sum of its proper divisors (3386556428).

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

2313121332 is a wasteful number, since it uses less digits than its factorization.

2313121332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32752 (or 32750 counting only the distinct ones).

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

The square root of 2313121332 is about 48094.9200228049. The cubic root of 2313121332 is about 1322.5115429064.

Adding to 2313121332 its reverse (2331213132), we get a palindrome (4644334464).

The spelling of 2313121332 in words is "two billion, three hundred thirteen million, one hundred twenty-one thousand, three hundred thirty-two".