20441305541 has 4 divisors (see below), whose sum is σ = 20501962572. Its totient is φ = 20380648512.

The previous prime is 20441305523. The next prime is 20441305559. The reversal of 20441305541 is 14550314402.

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

It is an interprime number because it is at equal distance from previous prime (20441305523) and next prime (20441305559).

It can be written as a sum of positive squares in 2 ways, for example, as 2412872641 + 18028432900 = 49121^2 + 134270^2 .

It is a cyclic number.

It is not a de Polignac number, because 20441305541 - 2¹⁸ = 20441043397 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 (20441305441) 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, 30328010 + ... + 30328683.

It is an arithmetic number, because the mean of its divisors is an integer number (5125490643).

Almost surely, 2^20441305541 is an apocalyptic number.

It is an amenable number.

20441305541 is a deficient number, since it is larger than the sum of its proper divisors (60657031).

20441305541 is an equidigital number, since it uses as much as digits as its factorization.

20441305541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60657030.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 20441305541 its reverse (14550314402), we get a palindrome (34991619943).

The spelling of 20441305541 in words is "twenty billion, four hundred forty-one million, three hundred five thousand, five hundred forty-one".