23249331322561 has 2 divisors, whose sum is σ = 23249331322562. Its totient is φ = 23249331322560.

The previous prime is 23249331322537. The next prime is 23249331322589. The reversal of 23249331322561 is 16522313394232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20228405760000 + 3020925562561 = 4497600^2 + 1738081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23249331322561 is a prime.

It is not a weakly prime, because it can be changed into another prime (23249331326561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11624665661280 + 11624665661281.

It is an arithmetic number, because the mean of its divisors is an integer number (11624665661281).

Almost surely, 2^{23249331322561} is an apocalyptic number.

It is an amenable number.

23249331322561 is a deficient number, since it is larger than the sum of its proper divisors (1).

23249331322561 is an equidigital number, since it uses as much as digits as its factorization.

23249331322561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 46.

The spelling of 23249331322561 in words is "twenty-three trillion, two hundred forty-nine billion, three hundred thirty-one million, three hundred twenty-two thousand, five hundred sixty-one".