12103112 has 16 divisors (see below), whose sum is σ = 25935360. Its totient is φ = 5187024.

The previous prime is 12103109. The next prime is 12103123. The reversal of 12103112 is 21130121.

12103112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12103093 and 12103102.

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, 108008 + ... + 108119.

It is an arithmetic number, because the mean of its divisors is an integer number (1620960).

Almost surely, 2^12103112 is an apocalyptic number.

It is an amenable number.

12103112 is an abundant number, since it is smaller than the sum of its proper divisors (13832248).

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

12103112 is a wasteful number, since it uses less digits than its factorization.

12103112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216140 (or 216136 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 12103112 is about 3478.9527159765. The cubic root of 12103112 is about 229.5967224257.

Adding to 12103112 its reverse (21130121), we get a palindrome (33233233).

The spelling of 12103112 in words is "twelve million, one hundred three thousand, one hundred twelve".