20442020033 has 2 divisors, whose sum is σ = 20442020034. Its totient is φ = 20442020032.

The previous prime is 20442019987. The next prime is 20442020051. The reversal of 20442020033 is 33002024402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11158119424 + 9283900609 = 105632^2 + 96353^2 .

It is a cyclic number.

It is not a de Polignac number, because 20442020033 - 2²⁸ = 20173584577 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20442019987 and 20442020014.

It is not a weakly prime, because it can be changed into another prime (20442020633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10221010016 + 10221010017.

It is an arithmetic number, because the mean of its divisors is an integer number (10221010017).

Almost surely, 2^20442020033 is an apocalyptic number.

It is an amenable number.

20442020033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20442020033 is an equidigital number, since it uses as much as digits as its factorization.

20442020033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 20442020033 its reverse (33002024402), we get a palindrome (53444044435).

The spelling of 20442020033 in words is "twenty billion, four hundred forty-two million, twenty thousand, thirty-three".