443344131144021 has 16 divisors (see below), whose sum is σ = 642309550499840. Its totient is φ = 270974341614960.

The previous prime is 443344131143957. The next prime is 443344131144071. The reversal of 443344131144021 is 120441131443344.

It is not a de Polignac number, because 443344131144021 - 2⁶ = 443344131143957 is a prime.

It is a super-4 number, since 4×443344131144021⁴ (a number of 60 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443344131144071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125451082315 + ... + 125451085848.

It is an arithmetic number, because the mean of its divisors is an integer number (40144346906240).

Almost surely, 2^{443344131144021} is an apocalyptic number.

It is an amenable number.

443344131144021 is a deficient number, since it is larger than the sum of its proper divisors (198965419355819).

443344131144021 is a wasteful number, since it uses less digits than its factorization.

443344131144021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250902168216.

The product of its (nonzero) digits is 221184, while the sum is 39.

Adding to 443344131144021 its reverse (120441131443344), we get a palindrome (563785262587365).

The spelling of 443344131144021 in words is "four hundred forty-three trillion, three hundred forty-four billion, one hundred thirty-one million, one hundred forty-four thousand, twenty-one".