12103442 has 12 divisors (see below), whose sum is σ = 19659690. Its totient is φ = 5586048.

The previous prime is 12103433. The next prime is 12103447. The reversal of 12103442 is 24430121.

12103442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 3479²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 6105841 + 5997601 = 2471^2 + 2449^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12103442.

It is not an unprimeable number, because it can be changed into a prime (12103447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17567 + ... + 18242.

Almost surely, 2^12103442 is an apocalyptic number.

12103442 is a deficient number, since it is larger than the sum of its proper divisors (7556248).

12103442 is a wasteful number, since it uses less digits than its factorization.

12103442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35837 (or 35824 counting only the distinct ones).

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

The square root of 12103442 is about 3479.0001437195. Note that the first 3 decimals coincide. The cubic root of 12103442 is about 229.5988091129.

Adding to 12103442 its reverse (24430121), we get a palindrome (36533563).

The spelling of 12103442 in words is "twelve million, one hundred three thousand, four hundred forty-two".