22021563542323 has 2 divisors, whose sum is σ = 22021563542324. Its totient is φ = 22021563542322.

The previous prime is 22021563542311. The next prime is 22021563542399. The reversal of 22021563542323 is 32324536512022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22021563542323 is a prime.

It is not a weakly prime, because it can be changed into another prime (22021563542723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010781771161 + 11010781771162.

It is an arithmetic number, because the mean of its divisors is an integer number (11010781771162).

Almost surely, 2^{22021563542323} is an apocalyptic number.

22021563542323 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021563542323 is an equidigital number, since it uses as much as digits as its factorization.

22021563542323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 40.

The spelling of 22021563542323 in words is "twenty-two trillion, twenty-one billion, five hundred sixty-three million, five hundred forty-two thousand, three hundred twenty-three".