12103617 has 8 divisors (see below), whose sum is σ = 16379296. Its totient is φ = 7948512.

The previous prime is 12103613. The next prime is 12103631. The reversal of 12103617 is 71630121.

12103617 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12103617 - 2² = 12103613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12103593 and 12103602.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29908 + ... + 30309.

It is an arithmetic number, because the mean of its divisors is an integer number (2047412).

Almost surely, 2^12103617 is an apocalyptic number.

It is an amenable number.

12103617 is a deficient number, since it is larger than the sum of its proper divisors (4275679).

12103617 is an equidigital number, since it uses as much as digits as its factorization.

12103617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60287.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 12103617 is about 3479.0252945329. The cubic root of 12103617 is about 229.5999156742.

Adding to 12103617 its reverse (71630121), we get a palindrome (83733738).

It can be divided in two parts, 12103 and 617, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 12103617 in words is "twelve million, one hundred three thousand, six hundred seventeen".