443212113034021 has 2 divisors, whose sum is σ = 443212113034022. Its totient is φ = 443212113034020.

The previous prime is 443212113034013. The next prime is 443212113034063. The reversal of 443212113034021 is 120430311212344.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 430109812549921 + 13102300484100 = 20739089^2 + 3619710^2 .

It is a cyclic number.

It is not a de Polignac number, because 443212113034021 - 2³ = 443212113034013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443212113034421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221606056517010 + 221606056517011.

It is an arithmetic number, because the mean of its divisors is an integer number (221606056517011).

Almost surely, 2^{443212113034021} is an apocalyptic number.

It is an amenable number.

443212113034021 is a deficient number, since it is larger than the sum of its proper divisors (1).

443212113034021 is an equidigital number, since it uses as much as digits as its factorization.

443212113034021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 443212113034021 its reverse (120430311212344), we get a palindrome (563642424246365).

The spelling of 443212113034021 in words is "four hundred forty-three trillion, two hundred twelve billion, one hundred thirteen million, thirty-four thousand, twenty-one".