213244220443 has 2 divisors, whose sum is σ = 213244220444. Its totient is φ = 213244220442.

The previous prime is 213244220419. The next prime is 213244220447. The reversal of 213244220443 is 344022442312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213244220443 is a prime.

It is not a weakly prime, because it can be changed into another prime (213244220447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106622110221 + 106622110222.

It is an arithmetic number, because the mean of its divisors is an integer number (106622110222).

Almost surely, 2^213244220443 is an apocalyptic number.

213244220443 is a deficient number, since it is larger than the sum of its proper divisors (1).

213244220443 is an equidigital number, since it uses as much as digits as its factorization.

213244220443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 213244220443 its reverse (344022442312), we get a palindrome (557266662755).

The spelling of 213244220443 in words is "two hundred thirteen billion, two hundred forty-four million, two hundred twenty thousand, four hundred forty-three".