111000111111101 has 8 divisors (see below), whose sum is σ = 119456243009784. Its totient is φ = 102758058501120.

The previous prime is 111000111111079. The next prime is 111000111111103. The reversal of 111000111111101 is 101111111000111.

It can be written as a sum of positive squares in 4 ways, for example, as 25446879360100 + 85553231751001 = 5044490^2 + 9249499^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111000111111101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000111111103) 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, 53519821100 + ... + 53519823173.

It is an arithmetic number, because the mean of its divisors is an integer number (14932030376223).

Almost surely, 2^{111000111111101} is an apocalyptic number.

It is an amenable number.

111000111111101 is a deficient number, since it is larger than the sum of its proper divisors (8456131898683).

111000111111101 is a wasteful number, since it uses less digits than its factorization.

111000111111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107039644351.

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

Adding to 111000111111101 its reverse (101111111000111), we get a palindrome (212111222111212).

The spelling of 111000111111101 in words is "one hundred eleven trillion, one hundred eleven million, one hundred eleven thousand, one hundred one".