443143212173 has 2 divisors, whose sum is σ = 443143212174. Its totient is φ = 443143212172.

The previous prime is 443143212133. The next prime is 443143212229. The reversal of 443143212173 is 371212341344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251038075369 + 192105136804 = 501037^2 + 438298^2 .

It is a cyclic number.

It is not a de Polignac number, because 443143212173 - 2²⁸ = 442874776717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443143212133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221571606086 + 221571606087.

It is an arithmetic number, because the mean of its divisors is an integer number (221571606087).

Almost surely, 2^443143212173 is an apocalyptic number.

It is an amenable number.

443143212173 is a deficient number, since it is larger than the sum of its proper divisors (1).

443143212173 is an equidigital number, since it uses as much as digits as its factorization.

443143212173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 35.

The spelling of 443143212173 in words is "four hundred forty-three billion, one hundred forty-three million, two hundred twelve thousand, one hundred seventy-three".