21241444130441 has 4 divisors (see below), whose sum is σ = 21589664526084. Its totient is φ = 20893223734800.

The previous prime is 21241444130411. The next prime is 21241444130461. The reversal of 21241444130441 is 14403144414212.

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 1167056732416 + 20074387398025 = 1080304^2 + 4480445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21241444130441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21241444130411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174110197730 + ... + 174110197851.

It is an arithmetic number, because the mean of its divisors is an integer number (5397416131521).

Almost surely, 2^{21241444130441} is an apocalyptic number.

It is an amenable number.

21241444130441 is a deficient number, since it is larger than the sum of its proper divisors (348220395643).

21241444130441 is an equidigital number, since it uses as much as digits as its factorization.

21241444130441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348220395642.

The product of its (nonzero) digits is 49152, while the sum is 35.

Adding to 21241444130441 its reverse (14403144414212), we get a palindrome (35644588544653).

The spelling of 21241444130441 in words is "twenty-one trillion, two hundred forty-one billion, four hundred forty-four million, one hundred thirty thousand, four hundred forty-one".