2313321136 has 80 divisors (see below), whose sum is σ = 5411042560. Its totient is φ = 935919360.

The previous prime is 2313321133. The next prime is 2313321151. The reversal of 2313321136 is 6311233132.

2313321136 = 84² + 85² + ... + 1907².

It is a self number, because there is not a number n which added to its sum of digits gives 2313321136.

It is not an unprimeable number, because it can be changed into a prime (2313321133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651526 + ... + 655066.

It is an arithmetic number, because the mean of its divisors is an integer number (67638032).

Almost surely, 2^2313321136 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 2313321136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2705521280).

2313321136 is an abundant number, since it is smaller than the sum of its proper divisors (3097721424).

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

2313321136 is a wasteful number, since it uses less digits than its factorization.

2313321136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3882 (or 3876 counting only the distinct ones).

The product of its digits is 1944, while the sum is 25.

The square root of 2313321136 is about 48096.9971619851. The cubic root of 2313321136 is about 1322.5496206738.

Adding to 2313321136 its reverse (6311233132), we get a palindrome (8624554268).

The spelling of 2313321136 in words is "two billion, three hundred thirteen million, three hundred twenty-one thousand, one hundred thirty-six".