111110120100001 has 16 divisors (see below), whose sum is σ = 121239924523200. Its totient is φ = 100985132088000.

The previous prime is 111110120099983. The next prime is 111110120100037. The reversal of 111110120100001 is 100001021011111.

It is a cyclic number.

It is not a de Polignac number, because 111110120100001 - 2³⁷ = 110972681146529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111110120100041) 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 15 ways as a sum of consecutive naturals, for example, 1205196615 + ... + 1205288803.

It is an arithmetic number, because the mean of its divisors is an integer number (7577495282700).

Almost surely, 2^{111110120100001} is an apocalyptic number.

111110120100001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111110120100001 is a deficient number, since it is larger than the sum of its proper divisors (10129804423199).

111110120100001 is a wasteful number, since it uses less digits than its factorization.

111110120100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117120.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 111110120100001 its reverse (100001021011111), we get a palindrome (211111141111112).

The spelling of 111110120100001 in words is "one hundred eleven trillion, one hundred ten billion, one hundred twenty million, one hundred thousand, one".