11119909 has 2 divisors, whose sum is σ = 11119910. Its totient is φ = 11119908.

The previous prime is 11119891. The next prime is 11119931. The reversal of 11119909 is 90991111.

11119909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10660225 + 459684 = 3265^2 + 678^2 .

It is an emirp because it is prime and its reverse (90991111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11119909 - 2¹⁷ = 10988837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11119939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5559954 + 5559955.

It is an arithmetic number, because the mean of its divisors is an integer number (5559955).

Almost surely, 2^11119909 is an apocalyptic number.

It is an amenable number.

11119909 is a deficient number, since it is larger than the sum of its proper divisors (1).

11119909 is an equidigital number, since it uses as much as digits as its factorization.

11119909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 31.

The square root of 11119909 is about 3334.6527555354. The cubic root of 11119909 is about 223.2031971232.

The spelling of 11119909 in words is "eleven million, one hundred nineteen thousand, nine hundred nine".