23364202617221 has 2 divisors, whose sum is σ = 23364202617222. Its totient is φ = 23364202617220.

The previous prime is 23364202617181. The next prime is 23364202617241. The reversal of 23364202617221 is 12271620246332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21750004416100 + 1614198201121 = 4663690^2 + 1270511^2 .

It is a cyclic number.

It is not a de Polignac number, because 23364202617221 - 2¹⁸ = 23364202355077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23364202617241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11682101308610 + 11682101308611.

It is an arithmetic number, because the mean of its divisors is an integer number (11682101308611).

Almost surely, 2^{23364202617221} is an apocalyptic number.

It is an amenable number.

23364202617221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23364202617221 is an equidigital number, since it uses as much as digits as its factorization.

23364202617221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 41.

The spelling of 23364202617221 in words is "twenty-three trillion, three hundred sixty-four billion, two hundred two million, six hundred seventeen thousand, two hundred twenty-one".