12003203 has 4 divisors (see below), whose sum is σ = 12070440. Its totient is φ = 11935968.

The previous prime is 12003197. The next prime is 12003209. The reversal of 12003203 is 30230021.

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 (12003197) and next prime (12003209).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12003203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12003209) 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 3 ways as a sum of consecutive naturals, for example, 33350 + ... + 33707.

It is an arithmetic number, because the mean of its divisors is an integer number (3017610).

Almost surely, 2^12003203 is an apocalyptic number.

12003203 is a deficient number, since it is larger than the sum of its proper divisors (67237).

12003203 is an equidigital number, since it uses as much as digits as its factorization.

12003203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67236.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 12003203 is about 3464.5638975201. The cubic root of 12003203 is about 228.9632162526.

Adding to 12003203 its reverse (30230021), we get a palindrome (42233224).

The spelling of 12003203 in words is "twelve million, three thousand, two hundred three".