111001111110001 has 8 divisors (see below), whose sum is σ = 126890103564224. Its totient is φ = 95120041372560.

The previous prime is 111001111109923. The next prime is 111001111110011. The reversal of 111001111110001 is 100011111100111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111001111110001 - 2¹⁷ = 111001110978929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111001111110001.

It is not an unprimeable number, because it can be changed into a prime (111001111110011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1980649170 + ... + 1980705211.

It is an arithmetic number, because the mean of its divisors is an integer number (15861262945528).

Almost surely, 2^{111001111110001} is an apocalyptic number.

It is an amenable number.

111001111110001 is a deficient number, since it is larger than the sum of its proper divisors (15888992454223).

111001111110001 is an equidigital number, since it uses as much as digits as its factorization.

111001111110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3961358391.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 111001111110001 its reverse (100011111100111), we get a palindrome (211012222210112).

The spelling of 111001111110001 in words is "one hundred eleven trillion, one billion, one hundred eleven million, one hundred ten thousand, one".