123120304 has 20 divisors (see below), whose sum is σ = 251101240. Its totient is φ = 58320000.

The previous prime is 123120289. The next prime is 123120331. The reversal of 123120304 is 403021321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 202197 + ... + 202804.

It is an arithmetic number, because the mean of its divisors is an integer number (12555062).

Almost surely, 2^123120304 is an apocalyptic number.

It is an amenable number.

123120304 is an abundant number, since it is smaller than the sum of its proper divisors (127980936).

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

123120304 is a wasteful number, since it uses less digits than its factorization.

123120304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405028 (or 405022 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 123120304 is about 11095.9589040335. The cubic root of 123120304 is about 497.4810699597.

Adding to 123120304 its reverse (403021321), we get a palindrome (526141625).

The spelling of 123120304 in words is "one hundred twenty-three million, one hundred twenty thousand, three hundred four".