21424003003441 has 8 divisors (see below), whose sum is σ = 21923347780224. Its totient is φ = 20924708778960.

The previous prime is 21424003003393. The next prime is 21424003003457. The reversal of 21424003003441 is 14430030042412.

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 21424003003441 - 2¹¹ = 21424003001393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21424003007441) 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, 11779930 + ... + 13476451.

It is an arithmetic number, because the mean of its divisors is an integer number (2740418472528).

Almost surely, 2^{21424003003441} is an apocalyptic number.

It is an amenable number.

21424003003441 is a deficient number, since it is larger than the sum of its proper divisors (499344776783).

21424003003441 is a wasteful number, since it uses less digits than its factorization.

21424003003441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25276151.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 21424003003441 its reverse (14430030042412), we get a palindrome (35854033045853).

The spelling of 21424003003441 in words is "twenty-one trillion, four hundred twenty-four billion, three million, three thousand, four hundred forty-one".