12003103 has 4 divisors (see below), whose sum is σ = 13717840. Its totient is φ = 10288368.

The previous prime is 12003097. The next prime is 12003109. The reversal of 12003103 is 30130021.

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

It is an interprime number because it is at equal distance from previous prime (12003097) and next prime (12003109).

It is a cyclic number.

It is not a de Polignac number, because 12003103 - 2⁹ = 12002591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12003103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003109) 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, 857358 + ... + 857371.

It is an arithmetic number, because the mean of its divisors is an integer number (3429460).

Almost surely, 2^12003103 is an apocalyptic number.

12003103 is a deficient number, since it is larger than the sum of its proper divisors (1714737).

12003103 is an equidigital number, since it uses as much as digits as its factorization.

12003103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714736.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 12003103 is about 3464.5494656593. The cubic root of 12003103 is about 228.9625804116.

Adding to 12003103 its reverse (30130021), we get a palindrome (42133124).

The spelling of 12003103 in words is "twelve million, three thousand, one hundred three".