11109111013 has 32 divisors (see below), whose sum is σ = 15095549952. Its totient is φ = 7894238400.

The previous prime is 11109111011. The next prime is 11109111029. The reversal of 11109111013 is 31011190111.

It is a happy number.

11109111013 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 not a de Polignac number, because 11109111013 - 2¹ = 11109111011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11109111011) 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 31 ways as a sum of consecutive naturals, for example, 16228 + ... + 149938.

It is an arithmetic number, because the mean of its divisors is an integer number (471735936).

Almost surely, 2^11109111013 is an apocalyptic number.

11109111013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11109111013 is a deficient number, since it is larger than the sum of its proper divisors (3986438939).

11109111013 is a wasteful number, since it uses less digits than its factorization.

11109111013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133825.

The product of its (nonzero) digits is 27, while the sum is 19.

The spelling of 11109111013 in words is "eleven billion, one hundred nine million, one hundred eleven thousand, thirteen".