12000503 has 8 divisors (see below), whose sum is σ = 12926976. Its totient is φ = 11107800.

The previous prime is 12000473. The next prime is 12000509. The reversal of 12000503 is 30500021.

12000503 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12000503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000509) 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, 7703 + ... + 9128.

It is an arithmetic number, because the mean of its divisors is an integer number (1615872).

Almost surely, 2^12000503 is an apocalyptic number.

12000503 is a deficient number, since it is larger than the sum of its proper divisors (926473).

12000503 is a wasteful number, since it uses less digits than its factorization.

12000503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16885.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 12000503 is about 3464.1742161733. The cubic root of 12000503 is about 228.9460473063.

Adding to 12000503 its reverse (30500021), we get a palindrome (42500524).

The spelling of 12000503 in words is "twelve million, five hundred three", and thus it is an aban number.