23143276399 has 2 divisors, whose sum is σ = 23143276400. Its totient is φ = 23143276398.

The previous prime is 23143276367. The next prime is 23143276411. The reversal of 23143276399 is 99367234132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23143276399 - 2⁵ = 23143276367 is a prime.

It is a super-2 number, since 2×23143276399² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23143276099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11571638199 + 11571638200.

It is an arithmetic number, because the mean of its divisors is an integer number (11571638200).

Almost surely, 2^23143276399 is an apocalyptic number.

23143276399 is a deficient number, since it is larger than the sum of its proper divisors (1).

23143276399 is an equidigital number, since it uses as much as digits as its factorization.

23143276399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 49.

The spelling of 23143276399 in words is "twenty-three billion, one hundred forty-three million, two hundred seventy-six thousand, three hundred ninety-nine".