20444120033 has 4 divisors (see below), whose sum is σ = 21103607808. Its totient is φ = 19784632260.

The previous prime is 20444119999. The next prime is 20444120129. The reversal of 20444120033 is 33002144402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20444120033 - 2²⁸ = 20175684577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20444119990 and 20444120008.

It is not an unprimeable number, because it can be changed into a prime (20444120533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329743841 + ... + 329743902.

It is an arithmetic number, because the mean of its divisors is an integer number (5275901952).

Almost surely, 2^20444120033 is an apocalyptic number.

It is an amenable number.

20444120033 is a deficient number, since it is larger than the sum of its proper divisors (659487775).

20444120033 is an equidigital number, since it uses as much as digits as its factorization.

20444120033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659487774.

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

Adding to 20444120033 its reverse (33002144402), we get a palindrome (53446264435).

The spelling of 20444120033 in words is "twenty billion, four hundred forty-four million, one hundred twenty thousand, thirty-three".