20422344043 has 2 divisors, whose sum is σ = 20422344044. Its totient is φ = 20422344042.

The previous prime is 20422344029. The next prime is 20422344049. The reversal of 20422344043 is 34044322402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20422344043 is a prime.

It is not a weakly prime, because it can be changed into another prime (20422344049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10211172021 + 10211172022.

It is an arithmetic number, because the mean of its divisors is an integer number (10211172022).

Almost surely, 2^20422344043 is an apocalyptic number.

20422344043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20422344043 is an equidigital number, since it uses as much as digits as its factorization.

20422344043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 20422344043 its reverse (34044322402), we get a palindrome (54466666445).

The spelling of 20422344043 in words is "twenty billion, four hundred twenty-two million, three hundred forty-four thousand, forty-three".