110111100109 has 4 divisors (see below), whose sum is σ = 110274713116. Its totient is φ = 109947487104.

The previous prime is 110111100107. The next prime is 110111100139. The reversal of 110111100109 is 901001111011.

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 28197798084 + 81913302025 = 167922^2 + 286205^2 .

It is a cyclic number.

It is not a de Polignac number, because 110111100109 - 2¹ = 110111100107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110111100092 and 110111100101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110111100103) 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, 81805494 + ... + 81806839.

It is an arithmetic number, because the mean of its divisors is an integer number (27568678279).

Almost surely, 2^110111100109 is an apocalyptic number.

It is an amenable number.

110111100109 is a deficient number, since it is larger than the sum of its proper divisors (163613007).

110111100109 is an equidigital number, since it uses as much as digits as its factorization.

110111100109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163613006.

The product of its (nonzero) digits is 9, while the sum is 16.

The spelling of 110111100109 in words is "one hundred ten billion, one hundred eleven million, one hundred thousand, one hundred nine".