2021301109 has 2 divisors, whose sum is σ = 2021301110. Its totient is φ = 2021301108.

The previous prime is 2021301077. The next prime is 2021301127. The reversal of 2021301109 is 9011031202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1795640625 + 225660484 = 42375^2 + 15022^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021301109 - 2⁵ = 2021301077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021301169) 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 as a sum of consecutive naturals, namely, 1010650554 + 1010650555.

It is an arithmetic number, because the mean of its divisors is an integer number (1010650555).

Almost surely, 2^2021301109 is an apocalyptic number.

It is an amenable number.

2021301109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021301109 is an equidigital number, since it uses as much as digits as its factorization.

2021301109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 2021301109 is about 44958.8824260568. The cubic root of 2021301109 is about 1264.3782159874.

The spelling of 2021301109 in words is "two billion, twenty-one million, three hundred one thousand, one hundred nine".