20324223231443 has 2 divisors, whose sum is σ = 20324223231444. Its totient is φ = 20324223231442.

The previous prime is 20324223231397. The next prime is 20324223231451. The reversal of 20324223231443 is 34413232242302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20324223231443 - 2²² = 20324219037139 is a prime.

It is a super-2 number, since 2×20324223231443² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20324223231343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10162111615721 + 10162111615722.

It is an arithmetic number, because the mean of its divisors is an integer number (10162111615722).

Almost surely, 2^{20324223231443} is an apocalyptic number.

20324223231443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20324223231443 is an equidigital number, since it uses as much as digits as its factorization.

20324223231443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 20324223231443 its reverse (34413232242302), we get a palindrome (54737455473745).

The spelling of 20324223231443 in words is "twenty trillion, three hundred twenty-four billion, two hundred twenty-three million, two hundred thirty-one thousand, four hundred forty-three".