23802854138321 has 2 divisors, whose sum is σ = 23802854138322. Its totient is φ = 23802854138320.

The previous prime is 23802854138309. The next prime is 23802854138417. The reversal of 23802854138321 is 12383145820832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23726105193025 + 76748945296 = 4870945^2 + 277036^2 .

It is a cyclic number.

It is not a de Polignac number, because 23802854138321 - 2²² = 23802849944017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23802854138321.

It is not a weakly prime, because it can be changed into another prime (23802854108321) 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, 11901427069160 + 11901427069161.

It is an arithmetic number, because the mean of its divisors is an integer number (11901427069161).

Almost surely, 2^{23802854138321} is an apocalyptic number.

It is an amenable number.

23802854138321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23802854138321 is an equidigital number, since it uses as much as digits as its factorization.

23802854138321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 23802854138321 in words is "twenty-three trillion, eight hundred two billion, eight hundred fifty-four million, one hundred thirty-eight thousand, three hundred twenty-one".