111001100001 has 16 divisors (see below), whose sum is σ = 161669466048. Its totient is φ = 67184510400.

The previous prime is 111001099997. The next prime is 111001100003. The reversal of 111001100001 is 100001100111.

It is not a de Polignac number, because 111001100001 - 2² = 111001099997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111001100003) 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, 2196730 + ... + 2246691.

It is an arithmetic number, because the mean of its divisors is an integer number (10104341628).

Almost surely, 2^111001100001 is an apocalyptic number.

111001100001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111001100001 is a deficient number, since it is larger than the sum of its proper divisors (50668366047).

111001100001 is a wasteful number, since it uses less digits than its factorization.

111001100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4444192.

The product of its (nonzero) digits is 1, while the sum is 6.

Adding to 111001100001 its reverse (100001100111), we get a palindrome (211002200112).

The spelling of 111001100001 in words is "one hundred eleven billion, one million, one hundred thousand, one".