11091543227 has 16 divisors (see below), whose sum is σ = 12062054400. Its totient is φ = 10160277120.

The previous prime is 11091543217. The next prime is 11091543259. The reversal of 11091543227 is 72234519011.

11091543227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11091543227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11091543217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756674 + ... + 771192.

It is an arithmetic number, because the mean of its divisors is an integer number (753878400).

Almost surely, 2^11091543227 is an apocalyptic number.

11091543227 is a deficient number, since it is larger than the sum of its proper divisors (970511173).

11091543227 is a wasteful number, since it uses less digits than its factorization.

11091543227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15866.

The product of its (nonzero) digits is 15120, while the sum is 35.

The spelling of 11091543227 in words is "eleven billion, ninety-one million, five hundred forty-three thousand, two hundred twenty-seven".