201110001001109 has 4 divisors (see below), whose sum is σ = 201370169179116. Its totient is φ = 200849832823104.

The previous prime is 201110001001043. The next prime is 201110001001139. The reversal of 201110001001109 is 901100100011102.

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 121097369580625 + 80012631420484 = 11004425^2 + 8944978^2 .

It is a cyclic number.

It is not a de Polignac number, because 201110001001109 - 2¹² = 201110000997013 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 (201110001001139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130084087844 + ... + 130084089389.

It is an arithmetic number, because the mean of its divisors is an integer number (50342542294779).

Almost surely, 2^{201110001001109} is an apocalyptic number.

It is an amenable number.

201110001001109 is a deficient number, since it is larger than the sum of its proper divisors (260168178007).

201110001001109 is an equidigital number, since it uses as much as digits as its factorization.

201110001001109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260168178006.

The product of its (nonzero) digits is 18, while the sum is 17.

The spelling of 201110001001109 in words is "two hundred one trillion, one hundred ten billion, one million, one thousand, one hundred nine".