443323243320413 has 4 divisors (see below), whose sum is σ = 444133706288640. Its totient is φ = 442512780352188.

The previous prime is 443323243320401. The next prime is 443323243320449. The reversal of 443323243320413 is 314023342323344.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-443323243320413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443323243320473) 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, 405231483293 + ... + 405231484386.

It is an arithmetic number, because the mean of its divisors is an integer number (111033426572160).

Almost surely, 2^{443323243320413} is an apocalyptic number.

It is an amenable number.

443323243320413 is a deficient number, since it is larger than the sum of its proper divisors (810462968227).

443323243320413 is an equidigital number, since it uses as much as digits as its factorization.

443323243320413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810462968226.

The product of its (nonzero) digits is 1492992, while the sum is 41.

Adding to 443323243320413 its reverse (314023342323344), we get a palindrome (757346585643757).

The spelling of 443323243320413 in words is "four hundred forty-three trillion, three hundred twenty-three billion, two hundred forty-three million, three hundred twenty thousand, four hundred thirteen".