111111000010000 has 100 divisors (see below), whose sum is σ = 274734478225152. Its totient is φ = 43498774288000.

The previous prime is 111111000009991. The next prime is 111111000010001. The reversal of 111111000010000 is 10000111111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (100).

It is not an unprimeable number, because it can be changed into a prime (111111000010001) 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, 117733192 + ... + 118673191.

Almost surely, 2^{111111000010000} is an apocalyptic number.

111111000010000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111111000010000 is an abundant number, since it is smaller than the sum of its proper divisors (163623478215152).

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

111111000010000 is an equidigital number, since it uses as much as digits as its factorization.

111111000010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236406458 (or 236406437 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 111111000010000 its reverse (10000111111), we get a palindrome (111121000121111).

The spelling of 111111000010000 in words is "one hundred eleven trillion, one hundred eleven billion, ten thousand".