20441232334021 has 4 divisors (see below), whose sum is σ = 21643657765452. Its totient is φ = 19238806902592.

The previous prime is 20441232333959. The next prime is 20441232334043. The reversal of 20441232334021 is 12043323214402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15795974592225 + 4645257741796 = 3974415^2 + 2155286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20441232334021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20441232334121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601212715690 + ... + 601212715723.

It is an arithmetic number, because the mean of its divisors is an integer number (5410914441363).

Almost surely, 2^{20441232334021} is an apocalyptic number.

It is an amenable number.

20441232334021 is a deficient number, since it is larger than the sum of its proper divisors (1202425431431).

20441232334021 is a wasteful number, since it uses less digits than its factorization.

20441232334021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202425431430.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 20441232334021 its reverse (12043323214402), we get a palindrome (32484555548423).

The spelling of 20441232334021 in words is "twenty trillion, four hundred forty-one billion, two hundred thirty-two million, three hundred thirty-four thousand, twenty-one".