213221424122303 has 2 divisors, whose sum is σ = 213221424122304. Its totient is φ = 213221424122302.

The previous prime is 213221424122293. The next prime is 213221424122393. The reversal of 213221424122303 is 303221424122312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213221424122303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213221424122303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213221424122393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106610712061151 + 106610712061152.

It is an arithmetic number, because the mean of its divisors is an integer number (106610712061152).

Almost surely, 2^{213221424122303} is an apocalyptic number.

213221424122303 is a deficient number, since it is larger than the sum of its proper divisors (1).

213221424122303 is an equidigital number, since it uses as much as digits as its factorization.

213221424122303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 213221424122303 its reverse (303221424122312), we get a palindrome (516442848244615).

Subtracting 213221424122303 from its reverse (303221424122312), we obtain a palindrome (90000000000009).

The spelling of 213221424122303 in words is "two hundred thirteen trillion, two hundred twenty-one billion, four hundred twenty-four million, one hundred twenty-two thousand, three hundred three".