23636248403021 has 2 divisors, whose sum is σ = 23636248403022. Its totient is φ = 23636248403020.

The previous prime is 23636248402973. The next prime is 23636248403029. The reversal of 23636248403021 is 12030484263632.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23004205912900 + 632042490121 = 4796270^2 + 795011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23636248403021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23636248403029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11818124201510 + 11818124201511.

It is an arithmetic number, because the mean of its divisors is an integer number (11818124201511).

Almost surely, 2^{23636248403021} is an apocalyptic number.

It is an amenable number.

23636248403021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23636248403021 is an equidigital number, since it uses as much as digits as its factorization.

23636248403021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 23636248403021 in words is "twenty-three trillion, six hundred thirty-six billion, two hundred forty-eight million, four hundred three thousand, twenty-one".