11100100109 has 32 divisors (see below), whose sum is σ = 13350543360. Its totient is φ = 9030268800.

The previous prime is 11100100097. The next prime is 11100100177. The reversal of 11100100109 is 90100100111.

It is a happy number.

It is not a de Polignac number, because 11100100109 - 2⁴ = 11100100093 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11100100093 and 11100100102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100100199) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3342752 + ... + 3346070.

It is an arithmetic number, because the mean of its divisors is an integer number (417204480).

Almost surely, 2^11100100109 is an apocalyptic number.

It is an amenable number.

11100100109 is a deficient number, since it is larger than the sum of its proper divisors (2250443251).

11100100109 is a wasteful number, since it uses less digits than its factorization.

11100100109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3681.

The product of its (nonzero) digits is 9, while the sum is 14.

The spelling of 11100100109 in words is "eleven billion, one hundred million, one hundred thousand, one hundred nine".