111111000110101 has 4 divisors (see below), whose sum is σ = 111111025033804. Its totient is φ = 111110975186400.

The previous prime is 111111000109973. The next prime is 111111000110147. The reversal of 111111000110101 is 101011000111111.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 42622631017201 + 68488369092900 = 6528601^2 + 8275770^2 .

It is a cyclic number.

It is not a de Polignac number, because 111111000110101 - 2⁷ = 111111000109973 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 (111111000110401) 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, 3740040 + ... + 15369121.

It is an arithmetic number, because the mean of its divisors is an integer number (27777756258451).

Almost surely, 2^{111111000110101} is an apocalyptic number.

It is an amenable number.

111111000110101 is a deficient number, since it is larger than the sum of its proper divisors (24923703).

111111000110101 is an equidigital number, since it uses as much as digits as its factorization.

111111000110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24923702.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 111111000110101 its reverse (101011000111111), we get a palindrome (212122000221212).

The spelling of 111111000110101 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred ten thousand, one hundred one".