12032003 has 4 divisors (see below), whose sum is σ = 12044160. Its totient is φ = 12019848.

The previous prime is 12031991. The next prime is 12032011. The reversal of 12032003 is 30023021.

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 12032003 - 2⁶ = 12031939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12032063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4448 + ... + 6621.

It is an arithmetic number, because the mean of its divisors is an integer number (3011040).

Almost surely, 2^12032003 is an apocalyptic number.

12032003 is a deficient number, since it is larger than the sum of its proper divisors (12157).

12032003 is a wasteful number, since it uses less digits than its factorization.

12032003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12156.

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

The square root of 12032003 is about 3468.7177746251. The cubic root of 12032003 is about 229.1461916840.

Adding to 12032003 its reverse (30023021), we get a palindrome (42055024).

It can be divided in two parts, 120 and 32003, that added together give a palindrome (32123).

The spelling of 12032003 in words is "twelve million, thirty-two thousand, three".