2021300999 has 2 divisors, whose sum is σ = 2021301000. Its totient is φ = 2021300998.

The previous prime is 2021300989. The next prime is 2021301017. The reversal of 2021300999 is 9990031202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021300999 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021300929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010650499 + 1010650500.

It is an arithmetic number, because the mean of its divisors is an integer number (1010650500).

Almost surely, 2^2021300999 is an apocalyptic number.

2021300999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021300999 is an equidigital number, since it uses as much as digits as its factorization.

2021300999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 2021300999 is about 44958.8812027168. The cubic root of 2021300999 is about 1264.3781930514.

The spelling of 2021300999 in words is "two billion, twenty-one million, three hundred thousand, nine hundred ninety-nine".