20442104443 has 2 divisors, whose sum is σ = 20442104444. Its totient is φ = 20442104442.

The previous prime is 20442104407. The next prime is 20442104453. The reversal of 20442104443 is 34440124402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20442104443 - 2⁹ = 20442103931 is a prime.

It is not a weakly prime, because it can be changed into another prime (20442104453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10221052221 + 10221052222.

It is an arithmetic number, because the mean of its divisors is an integer number (10221052222).

Almost surely, 2^20442104443 is an apocalyptic number.

20442104443 is a deficient number, since it is larger than the sum of its proper divisors (1).

20442104443 is an equidigital number, since it uses as much as digits as its factorization.

20442104443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 20442104443 its reverse (34440124402), we get a palindrome (54882228845).

The spelling of 20442104443 in words is "twenty billion, four hundred forty-two million, one hundred four thousand, four hundred forty-three".