111010911011 has 16 divisors (see below), whose sum is σ = 149049616128. Its totient is φ = 79848007200.

The previous prime is 111010911007. The next prime is 111010911043. The reversal of 111010911011 is 110119010111.

It is not a de Polignac number, because 111010911011 - 2² = 111010911007 is a prime.

It is a super-2 number, since 2×111010911011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111010911001) 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, 55449005 + ... + 55451006.

It is an arithmetic number, because the mean of its divisors is an integer number (9315601008).

Almost surely, 2^111010911011 is an apocalyptic number.

111010911011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111010911011 is a deficient number, since it is larger than the sum of its proper divisors (38038705117).

111010911011 is a wasteful number, since it uses less digits than its factorization.

111010911011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110900042.

The product of its (nonzero) digits is 9, while the sum is 17.

Adding to 111010911011 its reverse (110119010111), we get a palindrome (221129921122).

The spelling of 111010911011 in words is "one hundred eleven billion, ten million, nine hundred eleven thousand, eleven".