23221562423 has 2 divisors, whose sum is σ = 23221562424. Its totient is φ = 23221562422.

The previous prime is 23221562387. The next prime is 23221562431. The reversal of 23221562423 is 32426512232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23221562423 - 2¹⁰ = 23221561399 is a prime.

It is a super-2 number, since 2×23221562423² (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 23221562423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23221562323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610781211 + 11610781212.

It is an arithmetic number, because the mean of its divisors is an integer number (11610781212).

Almost surely, 2^23221562423 is an apocalyptic number.

23221562423 is a deficient number, since it is larger than the sum of its proper divisors (1).

23221562423 is an equidigital number, since it uses as much as digits as its factorization.

23221562423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 32.

The spelling of 23221562423 in words is "twenty-three billion, two hundred twenty-one million, five hundred sixty-two thousand, four hundred twenty-three".