404232123 has 4 divisors (see below), whose sum is σ = 538976168. Its totient is φ = 269488080.

The previous prime is 404232097. The next prime is 404232133. The reversal of 404232123 is 321232404.

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

It is not a de Polignac number, because 404232123 - 2⁵ = 404232091 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 404232123.

It is not an unprimeable number, because it can be changed into a prime (404232133) 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, 67372018 + ... + 67372023.

It is an arithmetic number, because the mean of its divisors is an integer number (134744042).

Almost surely, 2^404232123 is an apocalyptic number.

404232123 is a deficient number, since it is larger than the sum of its proper divisors (134744045).

404232123 is a wasteful number, since it uses less digits than its factorization.

404232123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134744044.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 404232123 is about 20105.5246885029. The cubic root of 404232123 is about 739.3957344880.

Adding to 404232123 its reverse (321232404), we get a palindrome (725464527).

The spelling of 404232123 in words is "four hundred four million, two hundred thirty-two thousand, one hundred twenty-three".