21443031100441 has 8 divisors (see below), whose sum is σ = 22022762543360. Its totient is φ = 20863309660848.

The previous prime is 21443031100423. The next prime is 21443031100481. The reversal of 21443031100441 is 14400113034412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21443031100441 - 2¹⁹ = 21443030576153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21443031100481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1949950 + ... + 6832888.

It is an arithmetic number, because the mean of its divisors is an integer number (2752845317920).

Almost surely, 2^{21443031100441} is an apocalyptic number.

It is an amenable number.

21443031100441 is a deficient number, since it is larger than the sum of its proper divisors (579731442919).

21443031100441 is a wasteful number, since it uses less digits than its factorization.

21443031100441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001663.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 21443031100441 its reverse (14400113034412), we get a palindrome (35843144134853).

The spelling of 21443031100441 in words is "twenty-one trillion, four hundred forty-three billion, thirty-one million, one hundred thousand, four hundred forty-one".