11808003 has 4 divisors (see below), whose sum is σ = 15744008. Its totient is φ = 7872000.

The previous prime is 11807989. The next prime is 11808007. The reversal of 11808003 is 30080811.

It is a happy number.

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

It is not a de Polignac number, because 11808003 - 2¹² = 11803907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11808007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1967998 + ... + 1968003.

It is an arithmetic number, because the mean of its divisors is an integer number (3936002).

Almost surely, 2^11808003 is an apocalyptic number.

11808003 is a deficient number, since it is larger than the sum of its proper divisors (3936005).

11808003 is an equidigital number, since it uses as much as digits as its factorization.

11808003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936004.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 11808003 is about 3436.2774917052. The cubic root of 11808003 is about 227.7152686074.

Adding to 11808003 its reverse (30080811), we get a palindrome (41888814).

The spelling of 11808003 in words is "eleven million, eight hundred eight thousand, three".