111111000110001 has 48 divisors (see below), whose sum is σ = 165430912825984. Its totient is φ = 71809888718592.

The previous prime is 111111000109973. The next prime is 111111000110147. The reversal of 111111000110001 is 100011000111111.

It is not a de Polignac number, because 111111000110001 - 2⁷ = 111111000109873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111111000110401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 995767725 + ... + 995879301.

Almost surely, 2^{111111000110001} is an apocalyptic number.

It is an amenable number.

111111000110001 is a deficient number, since it is larger than the sum of its proper divisors (54319912715983).

111111000110001 is a wasteful number, since it uses less digits than its factorization.

111111000110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122470 (or 122467 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 111111000110001 its reverse (100011000111111), we get a palindrome (211122000221112).

It can be divided in two parts, 11111 and 1000110001, that multiplied together give a palindrome (11112222221111).

The spelling of 111111000110001 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred ten thousand, one".