11912003 has 4 divisors (see below), whose sum is σ = 11918928. Its totient is φ = 11905080.

The previous prime is 11911987. The next prime is 11912051. The reversal of 11912003 is 30021911.

It is a happy number.

11912003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11912003 - 2⁴ = 11911987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11912063) 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, 1325 + ... + 5057.

It is an arithmetic number, because the mean of its divisors is an integer number (2979732).

Almost surely, 2^11912003 is an apocalyptic number.

11912003 is a deficient number, since it is larger than the sum of its proper divisors (6925).

11912003 is an equidigital number, since it uses as much as digits as its factorization.

11912003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6924.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 11912003 is about 3451.3769715868. The cubic root of 11912003 is about 228.3818560040.

Adding to 11912003 its reverse (30021911), we get a palindrome (41933914).

The spelling of 11912003 in words is "eleven million, nine hundred twelve thousand, three".