123604023 has 4 divisors (see below), whose sum is σ = 164805368. Its totient is φ = 82402680.

The previous prime is 123603989. The next prime is 123604027. The reversal of 123604023 is 320406321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320406321 = 3 ⋅106802107.

It is not a de Polignac number, because 123604023 - 2⁶ = 123603959 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 (123604027) 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, 20600668 + ... + 20600673.

It is an arithmetic number, because the mean of its divisors is an integer number (41201342).

Almost surely, 2^123604023 is an apocalyptic number.

123604023 is a deficient number, since it is larger than the sum of its proper divisors (41201345).

123604023 is an equidigital number, since it uses as much as digits as its factorization.

123604023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41201344.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 123604023 is about 11117.7346163686. The cubic root of 123604023 is about 498.1317251262.

The spelling of 123604023 in words is "one hundred twenty-three million, six hundred four thousand, twenty-three".