1000111000111 has 4 divisors (see below), whose sum is σ = 1000113002224. Its totient is φ = 1000108998000.

The previous prime is 1000111000081. The next prime is 1000111000123. The reversal of 1000111000111 is 1110001110001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1000111000111 - 2⁵ = 1000111000079 is a prime.

It is a Duffinian number.

1000111000111 is a modest number, since divided by 111000111 gives 1 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1000111000094 and 1000111000103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000111000181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433411 + ... + 1479211.

It is an arithmetic number, because the mean of its divisors is an integer number (250028250556).

Almost surely, 2^{1000111000111} is an apocalyptic number.

1000111000111 is a deficient number, since it is larger than the sum of its proper divisors (2002113).

1000111000111 is an equidigital number, since it uses as much as digits as its factorization.

1000111000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002112.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 1000111000111 its reverse (1110001110001), we get a palindrome (2110112110112).

It can be divided in two parts, 10001110001 and 11, that multiplied together give a palindrome (110012210011).

The spelling of 1000111000111 in words is "one trillion, one hundred eleven million, one hundred eleven", and thus it is an aban number.