2321316689 has 2 divisors, whose sum is σ = 2321316690. Its totient is φ = 2321316688.

The previous prime is 2321316667. The next prime is 2321316691. The reversal of 2321316689 is 9866131232.

2321316689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1367742289 + 953574400 = 36983^2 + 30880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2321316689 is a prime.

It is a super-2 number, since 2×2321316689² = 10777022341259845442, which contains 22 as substring.

Together with 2321316691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2321316649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160658344 + 1160658345.

It is an arithmetic number, because the mean of its divisors is an integer number (1160658345).

Almost surely, 2^2321316689 is an apocalyptic number.

It is an amenable number.

2321316689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321316689 is an equidigital number, since it uses as much as digits as its factorization.

2321316689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 2321316689 is about 48180.0445101496. The cubic root of 2321316689 is about 1324.0715820120.

The spelling of 2321316689 in words is "two billion, three hundred twenty-one million, three hundred sixteen thousand, six hundred eighty-nine".