12103643 has 8 divisors (see below), whose sum is σ = 13258080. Its totient is φ = 10998400.

The previous prime is 12103639. The next prime is 12103657. The reversal of 12103643 is 34630121.

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

It is a cyclic number.

It is not a de Polignac number, because 12103643 - 2² = 12103639 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 11783 + ... + 12768.

It is an arithmetic number, because the mean of its divisors is an integer number (1657260).

Almost surely, 2^12103643 is an apocalyptic number.

12103643 is a deficient number, since it is larger than the sum of its proper divisors (1154437).

12103643 is a wasteful number, since it uses less digits than its factorization.

12103643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24597.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 12103643 is about 3479.0290312097. The cubic root of 12103643 is about 229.6000800766.

Adding to 12103643 its reverse (34630121), we get a palindrome (46733764).

The spelling of 12103643 in words is "twelve million, one hundred three thousand, six hundred forty-three".