111000100020000 has 120 divisors (see below), whose sum is σ = 364102528282416. Its totient is φ = 29600026656000.

The previous prime is 111000100019989. The next prime is 111000100020001. The reversal of 111000100020000 is 20001000111.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is not an unprimeable number, because it can be changed into a prime (111000100020001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 924940834 + ... + 925060833.

Almost surely, 2^{111000100020000} is an apocalyptic number.

111000100020000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111000100020000 is an abundant number, since it is smaller than the sum of its proper divisors (253102428262416).

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

111000100020000 is an equidigital number, since it uses as much as digits as its factorization.

111000100020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850001700 (or 1850001677 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 111000100020000 its reverse (20001000111), we get a palindrome (111020101020111).

The spelling of 111000100020000 in words is "one hundred eleven trillion, one hundred million, twenty thousand".