20441243323 has 2 divisors, whose sum is σ = 20441243324. Its totient is φ = 20441243322.

The previous prime is 20441243321. The next prime is 20441243327. The reversal of 20441243323 is 32334214402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20441243323 - 2¹ = 20441243321 is a prime.

Together with 20441243321, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20441243291 and 20441243300.

It is not a weakly prime, because it can be changed into another prime (20441243321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10220621661 + 10220621662.

It is an arithmetic number, because the mean of its divisors is an integer number (10220621662).

Almost surely, 2^20441243323 is an apocalyptic number.

20441243323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20441243323 is an equidigital number, since it uses as much as digits as its factorization.

20441243323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 20441243323 its reverse (32334214402), we get a palindrome (52775457725).

The spelling of 20441243323 in words is "twenty billion, four hundred forty-one million, two hundred forty-three thousand, three hundred twenty-three".