123009304 has 16 divisors (see below), whose sum is σ = 251610120. Its totient is φ = 55913280.

The previous prime is 123009269. The next prime is 123009323. The reversal of 123009304 is 403900321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698829 + ... + 699004.

Almost surely, 2^123009304 is an apocalyptic number.

It is an amenable number.

123009304 is an abundant number, since it is smaller than the sum of its proper divisors (128600816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123009304 is a wasteful number, since it uses less digits than its factorization.

123009304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397850 (or 1397846 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 123009304 is about 11090.9559551916. The cubic root of 123009304 is about 497.3315224574.

Adding to 123009304 its reverse (403900321), we get a palindrome (526909625).

The spelling of 123009304 in words is "one hundred twenty-three million, nine thousand, three hundred four".