123203404 has 24 divisors (see below), whose sum is σ = 218566656. Its totient is φ = 60762000.

The previous prime is 123203383. The next prime is 123203411. The reversal of 123203404 is 404302321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99469 + ... + 100699.

It is an arithmetic number, because the mean of its divisors is an integer number (9106944).

Almost surely, 2^123203404 is an apocalyptic number.

It is an amenable number.

123203404 is a deficient number, since it is larger than the sum of its proper divisors (95363252).

123203404 is a wasteful number, since it uses less digits than its factorization.

123203404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 123203404 is about 11099.7028789063. The cubic root of 123203404 is about 497.5929696711.

Adding to 123203404 its reverse (404302321), we get a palindrome (527505725).

The spelling of 123203404 in words is "one hundred twenty-three million, two hundred three thousand, four hundred four".