2317372721 has 2 divisors, whose sum is σ = 2317372722. Its totient is φ = 2317372720.

The previous prime is 2317372703. The next prime is 2317372769. The reversal of 2317372721 is 1272737132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1352400625 + 964972096 = 36775^2 + 31064^2 .

It is a cyclic number.

It is not a de Polignac number, because 2317372721 - 2⁶ = 2317372657 is a prime.

It is not a weakly prime, because it can be changed into another prime (2317372921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1158686360 + 1158686361.

It is an arithmetic number, because the mean of its divisors is an integer number (1158686361).

Almost surely, 2^2317372721 is an apocalyptic number.

It is an amenable number.

2317372721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2317372721 is an equidigital number, since it uses as much as digits as its factorization.

2317372721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24696, while the sum is 35.

The square root of 2317372721 is about 48139.0976338361. The cubic root of 2317372721 is about 1323.3212813667.

The spelling of 2317372721 in words is "two billion, three hundred seventeen million, three hundred seventy-two thousand, seven hundred twenty-one".