111111111111101 has 8 divisors (see below), whose sum is σ = 113886015474144. Its totient is φ = 108369045853200.

The previous prime is 111111111111053. The next prime is 111111111111229. The reversal of 111111111111101 is 101111111111111.

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 111111111111101 - 2³⁰ = 111110037369277 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 (111111111111001) 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, 8209769435 + ... + 8209782968.

It is an arithmetic number, because the mean of its divisors is an integer number (14235751934268).

Almost surely, 2^{111111111111101} is an apocalyptic number.

It is an amenable number.

111111111111101 is a deficient number, since it is larger than the sum of its proper divisors (2774904363043).

111111111111101 is a wasteful number, since it uses less digits than its factorization.

111111111111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16419552571.

The product of its (nonzero) digits is 1, while the sum is 14.

Adding to 111111111111101 its reverse (101111111111111), we get a palindrome (212222222222212).

It can be divided in two parts, 11111111111110 and 1, that added together give a palindrome (11111111111111).

The spelling of 111111111111101 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred eleven million, one hundred eleven thousand, one hundred one".