20360243 has 2 divisors, whose sum is σ = 20360244. Its totient is φ = 20360242.

The previous prime is 20360213. The next prime is 20360279. The reversal of 20360243 is 34206302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20360243 - 2⁸ = 20359987 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20360213) 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, 10180121 + 10180122.

It is an arithmetic number, because the mean of its divisors is an integer number (10180122).

Almost surely, 2^20360243 is an apocalyptic number.

20360243 is a deficient number, since it is larger than the sum of its proper divisors (1).

20360243 is an equidigital number, since it uses as much as digits as its factorization.

20360243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 20360243 is about 4512.2325959551. The cubic root of 20360243 is about 273.0618232252.

Adding to 20360243 its reverse (34206302), we get a palindrome (54566545).

The spelling of 20360243 in words is "twenty million, three hundred sixty thousand, two hundred forty-three".