123112104 has 16 divisors (see below), whose sum is σ = 307780320. Its totient is φ = 41037360.

The previous prime is 123112103. The next prime is 123112151. The reversal of 123112104 is 401211321.

It is not an unprimeable number, because it can be changed into a prime (123112103) by changing a digit.

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, 2564812 + ... + 2564859.

It is an arithmetic number, because the mean of its divisors is an integer number (19236270).

Almost surely, 2^123112104 is an apocalyptic number.

It is an amenable number.

123112104 is an abundant number, since it is smaller than the sum of its proper divisors (184668216).

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

123112104 is a wasteful number, since it uses less digits than its factorization.

123112104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5129680 (or 5129676 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 123112104 is about 11095.5893939889. The cubic root of 123112104 is about 497.4700253819.

Adding to 123112104 its reverse (401211321), we get a palindrome (524323425).

The spelling of 123112104 in words is "one hundred twenty-three million, one hundred twelve thousand, one hundred four".