11303989 has 2 divisors, whose sum is σ = 11303990. Its totient is φ = 11303988.

The previous prime is 11303911. The next prime is 11304001. The reversal of 11303989 is 98930311.

11303989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10595025 + 708964 = 3255^2 + 842^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11303989 is a prime.

It is a super-3 number, since 3×11303989³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11303489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5651994 + 5651995.

It is an arithmetic number, because the mean of its divisors is an integer number (5651995).

Almost surely, 2^11303989 is an apocalyptic number.

It is an amenable number.

11303989 is a deficient number, since it is larger than the sum of its proper divisors (1).

11303989 is an equidigital number, since it uses as much as digits as its factorization.

11303989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 11303989 is about 3362.1405384070. The cubic root of 11303989 is about 224.4281048150.

The spelling of 11303989 in words is "eleven million, three hundred three thousand, nine hundred eighty-nine".