2321130312 has 96 divisors (see below), whose sum is σ = 6430675680. Its totient is φ = 756138240.

The previous prime is 2321130311. The next prime is 2321130319. The reversal of 2321130312 is 2130311232.

2321130312 is a `hidden beast` number, since 2 + 321 + 1 + 30 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2321130311) 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 23 ways as a sum of consecutive naturals, for example, 630108 + ... + 633780.

It is an arithmetic number, because the mean of its divisors is an integer number (66986205).

Almost surely, 2^2321130312 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 2321130312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3215337840).

2321130312 is an abundant number, since it is smaller than the sum of its proper divisors (4109545368).

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

2321130312 is a wasteful number, since it uses less digits than its factorization.

2321130312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3883 (or 3876 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2321130312 is about 48178.1102991805. The cubic root of 2321130312 is about 1324.0361447829.

Adding to 2321130312 its reverse (2130311232), we get a palindrome (4451441544).

The spelling of 2321130312 in words is "two billion, three hundred twenty-one million, one hundred thirty thousand, three hundred twelve".