23545603036321 has 2 divisors, whose sum is σ = 23545603036322. Its totient is φ = 23545603036320.

The previous prime is 23545603036313. The next prime is 23545603036363. The reversal of 23545603036321 is 12363030654532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20920195299600 + 2625407736721 = 4573860^2 + 1620311^2 .

It is a cyclic number.

It is not a de Polignac number, because 23545603036321 - 2³ = 23545603036313 is a prime.

It is not a weakly prime, because it can be changed into another prime (23545603036721) 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, 11772801518160 + 11772801518161.

It is an arithmetic number, because the mean of its divisors is an integer number (11772801518161).

Almost surely, 2^{23545603036321} is an apocalyptic number.

It is an amenable number.

23545603036321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23545603036321 is an equidigital number, since it uses as much as digits as its factorization.

23545603036321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 43.

The spelling of 23545603036321 in words is "twenty-three trillion, five hundred forty-five billion, six hundred three million, thirty-six thousand, three hundred twenty-one".