2100300217 has 2 divisors, whose sum is σ = 2100300218. Its totient is φ = 2100300216.

The previous prime is 2100300193. The next prime is 2100300221. The reversal of 2100300217 is 7120030012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2069431081 + 30869136 = 45491^2 + 5556^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100300217 - 2¹¹ = 2100298169 is a prime.

It is a super-2 number, since 2×2100300217² = 8822522003060494178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2100300217.

It is not a weakly prime, because it can be changed into another prime (2100300287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050150108 + 1050150109.

It is an arithmetic number, because the mean of its divisors is an integer number (1050150109).

Almost surely, 2^2100300217 is an apocalyptic number.

It is an amenable number.

2100300217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100300217 is an equidigital number, since it uses as much as digits as its factorization.

2100300217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 2100300217 is about 45829.0324685128. The cubic root of 2100300217 is about 1280.6401861488.

Adding to 2100300217 its reverse (7120030012), we get a palindrome (9220330229).

The spelling of 2100300217 in words is "two billion, one hundred million, three hundred thousand, two hundred seventeen".