23966145223 has 2 divisors, whose sum is σ = 23966145224. Its totient is φ = 23966145222.

The previous prime is 23966145149. The next prime is 23966145227. The reversal of 23966145223 is 32254166932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23966145223 - 2⁹ = 23966144711 is a prime.

It is a super-2 number, since 2×23966145223² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23966145223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23966145227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11983072611 + 11983072612.

It is an arithmetic number, because the mean of its divisors is an integer number (11983072612).

Almost surely, 2^23966145223 is an apocalyptic number.

23966145223 is a deficient number, since it is larger than the sum of its proper divisors (1).

23966145223 is an equidigital number, since it uses as much as digits as its factorization.

23966145223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 43.

The spelling of 23966145223 in words is "twenty-three billion, nine hundred sixty-six million, one hundred forty-five thousand, two hundred twenty-three".