123204401303423 has 16 divisors (see below), whose sum is σ = 134431703187840. Its totient is φ = 111981585103200.

The previous prime is 123204401303387. The next prime is 123204401303521. The reversal of 123204401303423 is 324303104402321.

It is a cyclic number.

It is not a de Polignac number, because 123204401303423 - 2⁸ = 123204401303167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123204401303423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123204401303023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1645078808 + ... + 1645153698.

It is an arithmetic number, because the mean of its divisors is an integer number (8401981449240).

Almost surely, 2^{123204401303423} is an apocalyptic number.

123204401303423 is a deficient number, since it is larger than the sum of its proper divisors (11227301884417).

123204401303423 is a wasteful number, since it uses less digits than its factorization.

123204401303423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102838.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 123204401303423 its reverse (324303104402321), we get a palindrome (447507505705744).

The spelling of 123204401303423 in words is "one hundred twenty-three trillion, two hundred four billion, four hundred one million, three hundred three thousand, four hundred twenty-three".