12381003 has 12 divisors (see below), whose sum is σ = 17945928. Its totient is φ = 8225280.

The previous prime is 12380971. The next prime is 12381011. The reversal of 12381003 is 30018321.

It is not a de Polignac number, because 12381003 - 2⁵ = 12380971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12381023) 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, 523 + ... + 5003.

It is an arithmetic number, because the mean of its divisors is an integer number (1495494).

Almost surely, 2^12381003 is an apocalyptic number.

12381003 is a deficient number, since it is larger than the sum of its proper divisors (5564925).

12381003 is a wasteful number, since it uses less digits than its factorization.

12381003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4794 (or 4791 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12381003 is about 3518.6649456861. The cubic root of 12381003 is about 231.3406454478.

Adding to 12381003 its reverse (30018321), we get a palindrome (42399324).

The spelling of 12381003 in words is "twelve million, three hundred eighty-one thousand, three".