2323517561 has 2 divisors, whose sum is σ = 2323517562. Its totient is φ = 2323517560.

The previous prime is 2323517491. The next prime is 2323517563. The reversal of 2323517561 is 1657153232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1775021161 + 548496400 = 42131^2 + 23420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2323517561 is a prime.

It is a Sophie Germain prime.

Together with 2323517563, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2323517563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1161758780 + 1161758781.

It is an arithmetic number, because the mean of its divisors is an integer number (1161758781).

Almost surely, 2^2323517561 is an apocalyptic number.

It is an amenable number.

2323517561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2323517561 is an equidigital number, since it uses as much as digits as its factorization.

2323517561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 35.

The square root of 2323517561 is about 48202.8791774931. The cubic root of 2323517561 is about 1324.4899066062.

The spelling of 2323517561 in words is "two billion, three hundred twenty-three million, five hundred seventeen thousand, five hundred sixty-one".