111111111000111 has 32 divisors (see below), whose sum is σ = 152215169711616. Its totient is φ = 72042227280000.

The previous prime is 111111111000103. The next prime is 111111111000119. The reversal of 111111111000111 is 111000111111111.

It is an interprime number because it is at equal distance from previous prime (111111111000103) and next prime (111111111000119).

It is not a de Polignac number, because 111111111000111 - 2³ = 111111111000103 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111111000119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4398511221 + ... + 4398536481.

It is an arithmetic number, because the mean of its divisors is an integer number (4756724053488).

Almost surely, 2^{111111111000111} is an apocalyptic number.

111111111000111 is a deficient number, since it is larger than the sum of its proper divisors (41104058711505).

111111111000111 is a wasteful number, since it uses less digits than its factorization.

111111111000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40143.

The product of its (nonzero) digits is 1, while the sum is 12.

Adding to 111111111000111 its reverse (111000111111111), we get a palindrome (222111222111222).

It can be divided in two parts, 111111111000 and 111, that added together give a palindrome (111111111111).

The spelling of 111111111000111 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred eleven million, one hundred eleven", and thus it is an aban number.