11091138843 has 16 divisors (see below), whose sum is σ = 14866052256. Its totient is φ = 7355228160.

The previous prime is 11091138811. The next prime is 11091138853. The reversal of 11091138843 is 34883119011.

It is not a de Polignac number, because 11091138843 - 2⁵ = 11091138811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11091138853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 680971 + ... + 697067.

It is an arithmetic number, because the mean of its divisors is an integer number (929128266).

Almost surely, 2^11091138843 is an apocalyptic number.

11091138843 is a deficient number, since it is larger than the sum of its proper divisors (3774913413).

11091138843 is a wasteful number, since it uses less digits than its factorization.

11091138843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17294.

The product of its (nonzero) digits is 20736, while the sum is 39.

The spelling of 11091138843 in words is "eleven billion, ninety-one million, one hundred thirty-eight thousand, eight hundred forty-three".