12103611 has 12 divisors (see below), whose sum is σ = 17475768. Its totient is φ = 7448064.

The previous prime is 12103603. The next prime is 12103613. The reversal of 12103611 is 11630121.

It is not a de Polignac number, because 12103611 - 2³ = 12103603 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 11430 + ... + 12443.

It is an arithmetic number, because the mean of its divisors is an integer number (1456314).

Almost surely, 2^12103611 is an apocalyptic number.

12103611 is a deficient number, since it is larger than the sum of its proper divisors (5372157).

12103611 is a wasteful number, since it uses less digits than its factorization.

12103611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23902 (or 23889 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 12103611 is about 3479.0244322223. The cubic root of 12103611 is about 229.5998777351.

Adding to 12103611 its reverse (11630121), we get a palindrome (23733732).

The spelling of 12103611 in words is "twelve million, one hundred three thousand, six hundred eleven".