11031112191 has 16 divisors (see below), whose sum is σ = 16598540160. Its totient is φ = 6454986720.

The previous prime is 11031112163. The next prime is 11031112237. The reversal of 11031112191 is 19121113011.

It is not a de Polignac number, because 11031112191 - 2²³ = 11022723583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031112091) 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, 5762425 + ... + 5764338.

It is an arithmetic number, because the mean of its divisors is an integer number (1037408760).

Almost surely, 2^11031112191 is an apocalyptic number.

11031112191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11031112191 is a deficient number, since it is larger than the sum of its proper divisors (5567427969).

11031112191 is a wasteful number, since it uses less digits than its factorization.

11031112191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11526806.

The product of its (nonzero) digits is 54, while the sum is 21.

The spelling of 11031112191 in words is "eleven billion, thirty-one million, one hundred twelve thousand, one hundred ninety-one".