12123604 has 12 divisors (see below), whose sum is σ = 21900928. Its totient is φ = 5866200.

The previous prime is 12123589. The next prime is 12123607. The reversal of 12123604 is 40632121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123607) 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, 48762 + ... + 49009.

Almost surely, 2^12123604 is an apocalyptic number.

It is an amenable number.

12123604 is a deficient number, since it is larger than the sum of its proper divisors (9777324).

12123604 is a wasteful number, since it uses less digits than its factorization.

12123604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97806 (or 97804 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 12123604 is about 3481.8966096080. The cubic root of 12123604 is about 229.7262274988.

Adding to 12123604 its reverse (40632121), we get a palindrome (52755725).

The spelling of 12123604 in words is "twelve million, one hundred twenty-three thousand, six hundred four".