23040221523559 has 2 divisors, whose sum is σ = 23040221523560. Its totient is φ = 23040221523558.

The previous prime is 23040221523541. The next prime is 23040221523601. The reversal of 23040221523559 is 95532512204032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23040221523559 - 2²³ = 23040213134951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23040221523359) 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, 11520110761779 + 11520110761780.

It is an arithmetic number, because the mean of its divisors is an integer number (11520110761780).

Almost surely, 2^{23040221523559} is an apocalyptic number.

23040221523559 is a deficient number, since it is larger than the sum of its proper divisors (1).

23040221523559 is an equidigital number, since it uses as much as digits as its factorization.

23040221523559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 23040221523559 in words is "twenty-three trillion, forty billion, two hundred twenty-one million, five hundred twenty-three thousand, five hundred fifty-nine".