11103409 has 2 divisors, whose sum is σ = 11103410. Its totient is φ = 11103408.

The previous prime is 11103383. The next prime is 11103427. The reversal of 11103409 is 90430111.

It is a happy number.

11103409 is digitally balanced in base 2, 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., 10909809 + 193600 = 3303^2 + 440^2 .

It is an emirp because it is prime and its reverse (90430111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11103409 - 2⁵ = 11103377 is a prime.

It is not a weakly prime, because it can be changed into another prime (11103109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551704 + 5551705.

It is an arithmetic number, because the mean of its divisors is an integer number (5551705).

Almost surely, 2^11103409 is an apocalyptic number.

It is an amenable number.

11103409 is a deficient number, since it is larger than the sum of its proper divisors (1).

11103409 is an equidigital number, since it uses as much as digits as its factorization.

11103409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 11103409 is about 3332.1778163838. The cubic root of 11103409 is about 223.0927443061.

The spelling of 11103409 in words is "eleven million, one hundred three thousand, four hundred nine".