423421342230023 has 4 divisors (see below), whose sum is σ = 423422408210928. Its totient is φ = 423420276249120.

The previous prime is 423421342229993. The next prime is 423421342230067. The reversal of 423421342230023 is 320032243124324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 423421342230023 - 2²⁸ = 423421073794567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423421342830023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532394411 + ... + 533189132.

It is an arithmetic number, because the mean of its divisors is an integer number (105855602052732).

Almost surely, 2^{423421342230023} is an apocalyptic number.

423421342230023 is a deficient number, since it is larger than the sum of its proper divisors (1065980905).

423421342230023 is a wasteful number, since it uses less digits than its factorization.

423421342230023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065980904.

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 423421342230023 its reverse (320032243124324), we get a palindrome (743453585354347).

The spelling of 423421342230023 in words is "four hundred twenty-three trillion, four hundred twenty-one billion, three hundred forty-two million, two hundred thirty thousand, twenty-three".