2313531396 has 120 divisors (see below), whose sum is σ = 6615300384. Its totient is φ = 699217920.

The previous prime is 2313531391. The next prime is 2313531419. The reversal of 2313531396 is 6931353132.

2313531396 is a `hidden beast` number, since 2 + 31 + 3 + 531 + 3 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2313531396.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313531391) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2005956 + ... + 2007108.

Almost surely, 2^2313531396 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 2313531396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3307650192).

2313531396 is an abundant number, since it is smaller than the sum of its proper divisors (4301768988).

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

2313531396 is a wasteful number, since it uses less digits than its factorization.

2313531396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743 (or 1732 counting only the distinct ones).

The product of its digits is 43740, while the sum is 36.

The square root of 2313531396 is about 48099.1829036627. The cubic root of 2313531396 is about 1322.5896887322.

The spelling of 2313531396 in words is "two billion, three hundred thirteen million, five hundred thirty-one thousand, three hundred ninety-six".