20323214210443 has 2 divisors, whose sum is σ = 20323214210444. Its totient is φ = 20323214210442.

The previous prime is 20323214210419. The next prime is 20323214210479. The reversal of 20323214210443 is 34401241232302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20323214210443 is a prime.

It is not a weakly prime, because it can be changed into another prime (20323214217443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161607105221 + 10161607105222.

It is an arithmetic number, because the mean of its divisors is an integer number (10161607105222).

Almost surely, 2^{20323214210443} is an apocalyptic number.

20323214210443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323214210443 is an equidigital number, since it uses as much as digits as its factorization.

20323214210443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 20323214210443 its reverse (34401241232302), we get a palindrome (54724455442745).

The spelling of 20323214210443 in words is "twenty trillion, three hundred twenty-three billion, two hundred fourteen million, two hundred ten thousand, four hundred forty-three".