2020243 has 2 divisors, whose sum is σ = 2020244. Its totient is φ = 2020242.

The previous prime is 2020231. The next prime is 2020247. The reversal of 2020243 is 3420202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020243 is a prime.

2020243 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2020247) 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, 1010121 + 1010122.

It is an arithmetic number, because the mean of its divisors is an integer number (1010122).

2^2020243 is an apocalyptic number.

2020243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020243 is an equidigital number, since it uses as much as digits as its factorization.

2020243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 2020243 is about 1421.3525248861. The cubic root of 2020243 is about 126.4157552265.

Adding to 2020243 its reverse (3420202), we get a palindrome (5440445).

The spelling of 2020243 in words is "two million, twenty thousand, two hundred forty-three".