43321300213 has 2 divisors, whose sum is σ = 43321300214. Its totient is φ = 43321300212.

The previous prime is 43321300199. The next prime is 43321300229. The reversal of 43321300213 is 31200312334.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43321010769 + 289444 = 208137^2 + 538^2 .

It is a cyclic number.

It is not a de Polignac number, because 43321300213 - 2⁵ = 43321300181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43321300283) 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, 21660650106 + 21660650107.

It is an arithmetic number, because the mean of its divisors is an integer number (21660650107).

Almost surely, 2^43321300213 is an apocalyptic number.

It is an amenable number.

43321300213 is a deficient number, since it is larger than the sum of its proper divisors (1).

43321300213 is an equidigital number, since it uses as much as digits as its factorization.

43321300213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 43321300213 its reverse (31200312334), we get a palindrome (74521612547).

It can be divided in two parts, 433 and 21300213, that multiplied together give a palindrome (9222992229).

The spelling of 43321300213 in words is "forty-three billion, three hundred twenty-one million, three hundred thousand, two hundred thirteen".