21441010443 has 8 divisors (see below), whose sum is σ = 28588704768. Its totient is φ = 14293661544.

The previous prime is 21441010411. The next prime is 21441010457. The reversal of 21441010443 is 34401014412.

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

It is not a de Polignac number, because 21441010443 - 2⁵ = 21441010411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21441010403) 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, 154246 + ... + 258212.

It is an arithmetic number, because the mean of its divisors is an integer number (3573588096).

Almost surely, 2^21441010443 is an apocalyptic number.

21441010443 is a deficient number, since it is larger than the sum of its proper divisors (7147694325).

21441010443 is a wasteful number, since it uses less digits than its factorization.

21441010443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172713.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21441010443 its reverse (34401014412), we get a palindrome (55842024855).

The spelling of 21441010443 in words is "twenty-one billion, four hundred forty-one million, ten thousand, four hundred forty-three".