20323441443 has 4 divisors (see below), whose sum is σ = 27097921928. Its totient is φ = 13548960960.

The previous prime is 20323441381. The next prime is 20323441459. The reversal of 20323441443 is 34414432302.

It is a happy number.

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

It is not a de Polignac number, because 20323441443 - 2⁶ = 20323441379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20323441443.

It is not an unprimeable number, because it can be changed into a prime (20323441043) 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, 3387240238 + ... + 3387240243.

It is an arithmetic number, because the mean of its divisors is an integer number (6774480482).

Almost surely, 2^20323441443 is an apocalyptic number.

20323441443 is a deficient number, since it is larger than the sum of its proper divisors (6774480485).

20323441443 is an equidigital number, since it uses as much as digits as its factorization.

20323441443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6774480484.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 20323441443 its reverse (34414432302), we get a palindrome (54737873745).

The spelling of 20323441443 in words is "twenty billion, three hundred twenty-three million, four hundred forty-one thousand, four hundred forty-three".