443130442231313 has 4 divisors (see below), whose sum is σ = 443151323947188. Its totient is φ = 443109560515440.

The previous prime is 443130442231303. The next prime is 443130442231319. The reversal of 443130442231313 is 313132244031344.

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 334129993483729 + 109000448747584 = 18279223^2 + 10440328^2 .

It is a cyclic number.

It is not a de Polignac number, because 443130442231313 - 2¹⁸ = 443130441969169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (443130442231319) 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, 10440826106 + ... + 10440868547.

It is an arithmetic number, because the mean of its divisors is an integer number (110787830986797).

Almost surely, 2^{443130442231313} is an apocalyptic number.

It is an amenable number.

443130442231313 is a deficient number, since it is larger than the sum of its proper divisors (20881715875).

443130442231313 is a wasteful number, since it uses less digits than its factorization.

443130442231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20881715874.

The product of its (nonzero) digits is 248832, while the sum is 38.

Adding to 443130442231313 its reverse (313132244031344), we get a palindrome (756262686262657).

The spelling of 443130442231313 in words is "four hundred forty-three trillion, one hundred thirty billion, four hundred forty-two million, two hundred thirty-one thousand, three hundred thirteen".