12103616 has 28 divisors (see below), whose sum is σ = 27450288. Its totient is φ = 5187072.

The previous prime is 12103613. The next prime is 12103631. The reversal of 12103616 is 61630121.

12103616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (28).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13061 + ... + 13956.

Almost surely, 2^12103616 is an apocalyptic number.

12103616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12103616 is an abundant number, since it is smaller than the sum of its proper divisors (15346672).

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

12103616 is an equidigital number, since it uses as much as digits as its factorization.

12103616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27036 (or 27026 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12103616 is about 3479.0251508145. The cubic root of 12103616 is about 229.5999093510.

Adding to 12103616 its reverse (61630121), we get a palindrome (73733737).

The spelling of 12103616 in words is "twelve million, one hundred three thousand, six hundred sixteen".