202202020243 has 2 divisors, whose sum is σ = 202202020244. Its totient is φ = 202202020242.

The previous prime is 202202020213. The next prime is 202202020247. The reversal of 202202020243 is 342020202202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202202020243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202202020243.

It is not a weakly prime, because it can be changed into another prime (202202020247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101101010121 + 101101010122.

It is an arithmetic number, because the mean of its divisors is an integer number (101101010122).

Almost surely, 2^202202020243 is an apocalyptic number.

202202020243 is a deficient number, since it is larger than the sum of its proper divisors (1).

202202020243 is an equidigital number, since it uses as much as digits as its factorization.

202202020243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 202202020243 its reverse (342020202202), we get a palindrome (544222222445).

The spelling of 202202020243 in words is "two hundred two billion, two hundred two million, twenty thousand, two hundred forty-three".