2101330205 has 8 divisors (see below), whose sum is σ = 2715565272. Its totient is φ = 1551751488.

The previous prime is 2101330199. The next prime is 2101330207. The reversal of 2101330205 is 5020331012.

It can be written as a sum of positive squares in 4 ways, for example, as 19598329 + 2081731876 = 4427^2 + 45626^2 .

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-2101330205 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 (2101330207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16164014 + ... + 16164143.

It is an arithmetic number, because the mean of its divisors is an integer number (339445659).

Almost surely, 2^2101330205 is an apocalyptic number.

It is an amenable number.

2101330205 is a deficient number, since it is larger than the sum of its proper divisors (614235067).

2101330205 is a wasteful number, since it uses less digits than its factorization.

2101330205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32328175.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 2101330205 is about 45840.2683783592. The cubic root of 2101330205 is about 1280.8494940773.

Adding to 2101330205 its reverse (5020331012), we get a palindrome (7121661217).

The spelling of 2101330205 in words is "two billion, one hundred one million, three hundred thirty thousand, two hundred five".