443203323421213 has 2 divisors, whose sum is σ = 443203323421214. Its totient is φ = 443203323421212.

The previous prime is 443203323421123. The next prime is 443203323421247. The reversal of 443203323421213 is 312124323302344.

Together with previous prime (443203323421123) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 402475097015524 + 40728226405689 = 20061782^2 + 6381867^2 .

It is a cyclic number.

It is not a de Polignac number, because 443203323421213 - 2¹³ = 443203323413021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443203323421253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221601661710606 + 221601661710607.

It is an arithmetic number, because the mean of its divisors is an integer number (221601661710607).

Almost surely, 2^{443203323421213} is an apocalyptic number.

It is an amenable number.

443203323421213 is a deficient number, since it is larger than the sum of its proper divisors (1).

443203323421213 is an equidigital number, since it uses as much as digits as its factorization.

443203323421213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 37.

Adding to 443203323421213 its reverse (312124323302344), we get a palindrome (755327646723557).

The spelling of 443203323421213 in words is "four hundred forty-three trillion, two hundred three billion, three hundred twenty-three million, four hundred twenty-one thousand, two hundred thirteen".