12008003 has 4 divisors (see below), whose sum is σ = 13723440. Its totient is φ = 10292568.

The previous prime is 12007999. The next prime is 12008027. The reversal of 12008003 is 30080021.

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

It is a cyclic number.

It is not a de Polignac number, because 12008003 - 2² = 12007999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12008053) 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, 857708 + ... + 857721.

It is an arithmetic number, because the mean of its divisors is an integer number (3430860).

Almost surely, 2^12008003 is an apocalyptic number.

12008003 is a deficient number, since it is larger than the sum of its proper divisors (1715437).

12008003 is an equidigital number, since it uses as much as digits as its factorization.

12008003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715436.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12008003 is about 3465.2565561586. The cubic root of 12008003 is about 228.9937324677.

Adding to 12008003 its reverse (30080021), we get a palindrome (42088024).

The spelling of 12008003 in words is "twelve million, eight thousand, three".