11990303 has 4 divisors (see below), whose sum is σ = 12912648. Its totient is φ = 11067960.

The previous prime is 11990281. The next prime is 11990339. The reversal of 11990303 is 30309911.

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 11990303 - 2⁶ = 11990239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11990353) 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, 461153 + ... + 461178.

It is an arithmetic number, because the mean of its divisors is an integer number (3228162).

Almost surely, 2^11990303 is an apocalyptic number.

11990303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11990303 is a deficient number, since it is larger than the sum of its proper divisors (922345).

11990303 is an equidigital number, since it uses as much as digits as its factorization.

11990303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922344.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 11990303 is about 3462.7016908766. The cubic root of 11990303 is about 228.8811635921.

The spelling of 11990303 in words is "eleven million, nine hundred ninety thousand, three hundred three".