11117055191 has 12 divisors (see below), whose sum is σ = 12883058520. Its totient is φ = 9511916160.

The previous prime is 11117055151. The next prime is 11117055193. The reversal of 11117055191 is 19155071111.

11117055191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11117055191 - 2¹⁸ = 11116793047 is a prime.

It is a super-2 number, since 2×11117055191² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11117055193) 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 11 ways as a sum of consecutive naturals, for example, 1745336 + ... + 1751693.

It is an arithmetic number, because the mean of its divisors is an integer number (1073588210).

Almost surely, 2^11117055191 is an apocalyptic number.

11117055191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11117055191 is a deficient number, since it is larger than the sum of its proper divisors (1766003329).

11117055191 is a wasteful number, since it uses less digits than its factorization.

11117055191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3497074 (or 3497057 counting only the distinct ones).

The product of its (nonzero) digits is 1575, while the sum is 32.

The spelling of 11117055191 in words is "eleven billion, one hundred seventeen million, fifty-five thousand, one hundred ninety-one".