443242141021 has 2 divisors, whose sum is σ = 443242141022. Its totient is φ = 443242141020.

The previous prime is 443242140973. The next prime is 443242141031. The reversal of 443242141021 is 120141242344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247993044121 + 195249096900 = 497989^2 + 441870^2 .

It is a cyclic number.

It is not a de Polignac number, because 443242141021 - 2³¹ = 441094657373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443242141031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221621070510 + 221621070511.

It is an arithmetic number, because the mean of its divisors is an integer number (221621070511).

Almost surely, 2^443242141021 is an apocalyptic number.

It is an amenable number.

443242141021 is a deficient number, since it is larger than the sum of its proper divisors (1).

443242141021 is an equidigital number, since it uses as much as digits as its factorization.

443242141021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 443242141021 its reverse (120141242344), we get a palindrome (563383383365).

The spelling of 443242141021 in words is "four hundred forty-three billion, two hundred forty-two million, one hundred forty-one thousand, twenty-one".