111011001111111 has 8 divisors (see below), whose sum is σ = 148758460451200. Its totient is φ = 73635437922552.

The previous prime is 111011001111029. The next prime is 111011001111161. The reversal of 111011001111111 is 111111100110111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111011001111111 - 2⁹ = 111011001110599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111011001111161) 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 7 ways as a sum of consecutive naturals, for example, 92974037185 + ... + 92974038378.

It is an arithmetic number, because the mean of its divisors is an integer number (18594807556400).

Almost surely, 2^{111011001111111} is an apocalyptic number.

111011001111111 is a deficient number, since it is larger than the sum of its proper divisors (37747459340089).

111011001111111 is a wasteful number, since it uses less digits than its factorization.

111011001111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185948075765.

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

Adding to 111011001111111 its reverse (111111100110111), we get a palindrome (222122101221222).

The spelling of 111011001111111 in words is "one hundred eleven trillion, eleven billion, one million, one hundred eleven thousand, one hundred eleven".