111111011100101 has 8 divisors (see below), whose sum is σ = 111145979398464. Its totient is φ = 111076043944320.

The previous prime is 111111011100083. The next prime is 111111011100121. The reversal of 111111011100101 is 101001110111111.

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

It is a cyclic number.

It is not a de Polignac number, because 111111011100101 - 2³⁴ = 111093831230917 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 (111111011100121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221047280 + ... + 221549366.

It is an arithmetic number, because the mean of its divisors is an integer number (13893247424808).

Almost surely, 2^{111111011100101} is an apocalyptic number.

It is an amenable number.

111111011100101 is a deficient number, since it is larger than the sum of its proper divisors (34968298363).

111111011100101 is an equidigital number, since it uses as much as digits as its factorization.

111111011100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571291.

The product of its (nonzero) digits is 1, while the sum is 11.

Adding to 111111011100101 its reverse (101001110111111), we get a palindrome (212112121211212).

The spelling of 111111011100101 in words is "one hundred eleven trillion, one hundred eleven billion, eleven million, one hundred thousand, one hundred one".