12103601 has 4 divisors (see below), whose sum is σ = 12180852. Its totient is φ = 12026352.

The previous prime is 12103591. The next prime is 12103603. The reversal of 12103601 is 10630121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3097600 + 9006001 = 1760^2 + 3001^2 .

It is a cyclic number.

It is not a de Polignac number, because 12103601 - 2¹⁸ = 11841457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12103603) 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, 38390 + ... + 38703.

It is an arithmetic number, because the mean of its divisors is an integer number (3045213).

Almost surely, 2^12103601 is an apocalyptic number.

It is an amenable number.

12103601 is a deficient number, since it is larger than the sum of its proper divisors (77251).

12103601 is an equidigital number, since it uses as much as digits as its factorization.

12103601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77250.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 12103601 is about 3479.0229950375. The cubic root of 12103601 is about 229.5998145033.

Adding to 12103601 its reverse (10630121), we get a palindrome (22733722).

The spelling of 12103601 in words is "twelve million, one hundred three thousand, six hundred one".