102020299 has 2 divisors, whose sum is σ = 102020300. Its totient is φ = 102020298.

The previous prime is 102020293. The next prime is 102020323. The reversal of 102020299 is 992020201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102020299 - 2¹¹ = 102018251 is a prime.

It is not a weakly prime, because it can be changed into another prime (102020293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010149 + 51010150.

It is an arithmetic number, because the mean of its divisors is an integer number (51010150).

Almost surely, 2^102020299 is an apocalyptic number.

102020299 is a deficient number, since it is larger than the sum of its proper divisors (1).

102020299 is an equidigital number, since it uses as much as digits as its factorization.

102020299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 102020299 is about 10100.5098386171. The cubic root of 102020299 is about 467.2638654205.

The spelling of 102020299 in words is "one hundred two million, twenty thousand, two hundred ninety-nine".