100001111056 has 80 divisors (see below), whose sum is σ = 241621106688. Its totient is φ = 38951798400.

The previous prime is 100001111027. The next prime is 100001111057. The reversal of 100001111056 is 650111100001.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (100001111057) 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, 6846321 + ... + 6860911.

Almost surely, 2^100001111056 is an apocalyptic number.

100001111056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

100001111056 is an abundant number, since it is smaller than the sum of its proper divisors (141619995632).

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

100001111056 is a wasteful number, since it uses less digits than its factorization.

100001111056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20180 (or 20174 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 16.

Adding to 100001111056 its reverse (650111100001), we get a palindrome (750112211057).

The spelling of 100001111056 in words is "one hundred billion, one million, one hundred eleven thousand, fifty-six".