111000000000001 has 12 divisors (see below), whose sum is σ = 129128796158448. Its totient is φ = 95138180274312.

The previous prime is 110999999999971. The next prime is 111000000000017. The reversal of 111000000000001 is 100000000000111.

It is not a de Polignac number, because 111000000000001 - 2¹⁹ = 110999999475713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111000000000001.

It is not an unprimeable number, because it can be changed into a prime (111000000001001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54669831 + ... + 56663836.

It is an arithmetic number, because the mean of its divisors is an integer number (10760733013204).

Almost surely, 2^{111000000000001} is an apocalyptic number.

It is an amenable number.

111000000000001 is a deficient number, since it is larger than the sum of its proper divisors (18128796158447).

111000000000001 is a wasteful number, since it uses less digits than its factorization.

111000000000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111354028 (or 111354021 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 4.

Adding to 111000000000001 its reverse (100000000000111), we get a palindrome (211000000000112).

It can be divided in two parts, 11 and 1000000000001, that multiplied together give a palindrome (11000000000011).

The spelling of 111000000000001 in words is "one hundred eleven trillion, one", and thus it is an aban number.