1100111099988 has 12 divisors (see below), whose sum is σ = 2566925900000. Its totient is φ = 366703699992.

The previous prime is 1100111099987. The next prime is 1100111100007. The reversal of 1100111099988 is 8899901110011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100111099987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45837962488 + ... + 45837962511.

Almost surely, 2^{1100111099988} is an apocalyptic number.

It is an amenable number.

1100111099988 is an abundant number, since it is smaller than the sum of its proper divisors (1466814800012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1100111099988 is a wasteful number, since it uses less digits than its factorization.

1100111099988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91675925006 (or 91675925004 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 48.

The spelling of 1100111099988 in words is "one trillion, one hundred billion, one hundred eleven million, ninety-nine thousand, nine hundred eighty-eight".