20411202203243 has 2 divisors, whose sum is σ = 20411202203244. Its totient is φ = 20411202203242.

The previous prime is 20411202203221. The next prime is 20411202203251. The reversal of 20411202203243 is 34230220211402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20411202203243 - 2¹⁸ = 20411201941099 is a prime.

It is not a weakly prime, because it can be changed into another prime (20411202203443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10205601101621 + 10205601101622.

It is an arithmetic number, because the mean of its divisors is an integer number (10205601101622).

Almost surely, 2^{20411202203243} is an apocalyptic number.

20411202203243 is a deficient number, since it is larger than the sum of its proper divisors (1).

20411202203243 is an equidigital number, since it uses as much as digits as its factorization.

20411202203243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 20411202203243 its reverse (34230220211402), we get a palindrome (54641422414645).

The spelling of 20411202203243 in words is "twenty trillion, four hundred eleven billion, two hundred two million, two hundred three thousand, two hundred forty-three".