12123404 has 12 divisors (see below), whose sum is σ = 21371784. Its totient is φ = 6017184.

The previous prime is 12123373. The next prime is 12123439. The reversal of 12123404 is 40432121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10514 + ... + 11609.

It is an arithmetic number, because the mean of its divisors is an integer number (1780982).

Almost surely, 2^12123404 is an apocalyptic number.

It is an amenable number.

12123404 is a deficient number, since it is larger than the sum of its proper divisors (9248380).

12123404 is a wasteful number, since it uses less digits than its factorization.

12123404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22264 (or 22262 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12123404 is about 3481.8678895099. The cubic root of 12123404 is about 229.7249642469.

Adding to 12123404 its reverse (40432121), we get a palindrome (52555525).

The spelling of 12123404 in words is "twelve million, one hundred twenty-three thousand, four hundred four".