11100100109999 has 16 divisors (see below), whose sum is σ = 11368294239744. Its totient is φ = 10835061098400.

The previous prime is 11100100109951. The next prime is 11100100110013. The reversal of 11100100109999 is 99990100100111.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11100100109999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100100109299) 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, 32614889 + ... + 32953469.

It is an arithmetic number, because the mean of its divisors is an integer number (710518389984).

Almost surely, 2^{11100100109999} is an apocalyptic number.

11100100109999 is a deficient number, since it is larger than the sum of its proper divisors (268194129745).

11100100109999 is a wasteful number, since it uses less digits than its factorization.

11100100109999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343238.

The product of its (nonzero) digits is 6561, while the sum is 41.

The spelling of 11100100109999 in words is "eleven trillion, one hundred billion, one hundred million, one hundred nine thousand, nine hundred ninety-nine".