12003243 has 8 divisors (see below), whose sum is σ = 18290688. Its totient is φ = 6858984.

The previous prime is 12003239. The next prime is 12003247. The reversal of 12003243 is 34230021.

It is an interprime number because it is at equal distance from previous prime (12003239) and next prime (12003247).

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

It is not a de Polignac number, because 12003243 - 2² = 12003239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12003247) 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, 285771 + ... + 285812.

It is an arithmetic number, because the mean of its divisors is an integer number (2286336).

Almost surely, 2^12003243 is an apocalyptic number.

12003243 is a deficient number, since it is larger than the sum of its proper divisors (6287445).

12003243 is an equidigital number, since it uses as much as digits as its factorization.

12003243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571593.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 12003243 is about 3464.5696702477. The cubic root of 12003243 is about 228.9634705880.

Adding to 12003243 its reverse (34230021), we get a palindrome (46233264).

It can be divided in two parts, 12003 and 243, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 12003243 in words is "twelve million, three thousand, two hundred forty-three".