423402328399 has 2 divisors, whose sum is σ = 423402328400. Its totient is φ = 423402328398.

The previous prime is 423402328333. The next prime is 423402328417. The reversal of 423402328399 is 993823204324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423402328399 - 2²³ = 423393939791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423402328799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211701164199 + 211701164200.

It is an arithmetic number, because the mean of its divisors is an integer number (211701164200).

Almost surely, 2^423402328399 is an apocalyptic number.

423402328399 is a deficient number, since it is larger than the sum of its proper divisors (1).

423402328399 is an equidigital number, since it uses as much as digits as its factorization.

423402328399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2239488, while the sum is 49.

The spelling of 423402328399 in words is "four hundred twenty-three billion, four hundred two million, three hundred twenty-eight thousand, three hundred ninety-nine".