11591103 has 8 divisors (see below), whose sum is σ = 16126848. Its totient is φ = 7391384.

The previous prime is 11591089. The next prime is 11591113. The reversal of 11591103 is 30119511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11591103 - 2⁹ = 11590591 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11591103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11591113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83925 + ... + 84062.

It is an arithmetic number, because the mean of its divisors is an integer number (2015856).

Almost surely, 2^11591103 is an apocalyptic number.

11591103 is a deficient number, since it is larger than the sum of its proper divisors (4535745).

11591103 is a wasteful number, since it uses less digits than its factorization.

11591103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168013.

The product of its (nonzero) digits is 135, while the sum is 21.

The square root of 11591103 is about 3404.5708980722. The cubic root of 11591103 is about 226.3123503666.

The spelling of 11591103 in words is "eleven million, five hundred ninety-one thousand, one hundred three".