20442103043 has 2 divisors, whose sum is σ = 20442103044. Its totient is φ = 20442103042.

The previous prime is 20442103037. The next prime is 20442103051. The reversal of 20442103043 is 34030124402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20442103043 - 2⁶ = 20442102979 is a prime.

It is not a weakly prime, because it can be changed into another prime (20442103063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10221051521 + 10221051522.

It is an arithmetic number, because the mean of its divisors is an integer number (10221051522).

Almost surely, 2^20442103043 is an apocalyptic number.

20442103043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20442103043 is an equidigital number, since it uses as much as digits as its factorization.

20442103043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20442103043 its reverse (34030124402), we get a palindrome (54472227445).

The spelling of 20442103043 in words is "twenty billion, four hundred forty-two million, one hundred three thousand, forty-three".