443144331121 has 4 divisors (see below), whose sum is σ = 443171673252. Its totient is φ = 443116988992.

The previous prime is 443144331103. The next prime is 443144331143. The reversal of 443144331121 is 121133441344.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 403428225600 + 39716105521 = 635160^2 + 199289^2 .

It is a cyclic number.

It is not a de Polignac number, because 443144331121 - 2⁹ = 443144330609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (443144331181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13646740 + ... + 13679173.

It is an arithmetic number, because the mean of its divisors is an integer number (110792918313).

Almost surely, 2^443144331121 is an apocalyptic number.

It is an amenable number.

443144331121 is a deficient number, since it is larger than the sum of its proper divisors (27342131).

443144331121 is a wasteful number, since it uses less digits than its factorization.

443144331121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27342130.

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

Adding to 443144331121 its reverse (121133441344), we get a palindrome (564277772465).

The spelling of 443144331121 in words is "four hundred forty-three billion, one hundred forty-four million, three hundred thirty-one thousand, one hundred twenty-one".