23321325563 has 2 divisors, whose sum is σ = 23321325564. Its totient is φ = 23321325562.

The previous prime is 23321325551. The next prime is 23321325607. The reversal of 23321325563 is 36552312332.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23321325563 - 2¹² = 23321321467 is a prime.

It is not a weakly prime, because it can be changed into another prime (23321325263) 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, 11660662781 + 11660662782.

It is an arithmetic number, because the mean of its divisors is an integer number (11660662782).

Almost surely, 2^23321325563 is an apocalyptic number.

23321325563 is a deficient number, since it is larger than the sum of its proper divisors (1).

23321325563 is an equidigital number, since it uses as much as digits as its factorization.

23321325563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 35.

Adding to 23321325563 its reverse (36552312332), we get a palindrome (59873637895).

The spelling of 23321325563 in words is "twenty-three billion, three hundred twenty-one million, three hundred twenty-five thousand, five hundred sixty-three".