111001102000 has 80 divisors (see below), whose sum is σ = 269370964512. Its totient is φ = 44239929600.

The previous prime is 111001101989. The next prime is 111001102019. The reversal of 111001102000 is 201100111.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453819 + ... + 654181.

Almost surely, 2^111001102000 is an apocalyptic number.

111001102000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111001102000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134685482256).

111001102000 is an abundant number, since it is smaller than the sum of its proper divisors (158369862512).

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

111001102000 is a wasteful number, since it uses less digits than its factorization.

111001102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200663 (or 200647 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 111001102000 its reverse (201100111), we get a palindrome (111202202111).

The spelling of 111001102000 in words is "one hundred eleven billion, one million, one hundred two thousand".