21441020027 has 8 divisors (see below), whose sum is σ = 24746637792. Its totient is φ = 18196056000.

The previous prime is 21441019997. The next prime is 21441020047. The reversal of 21441020027 is 72002014412.

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 21441020027 - 2¹⁸ = 21440757883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21441019984 and 21441020011.

It is not an unprimeable number, because it can be changed into a prime (21441020047) 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, 15162674 + ... + 15164087.

It is an arithmetic number, because the mean of its divisors is an integer number (3093329724).

Almost surely, 2^21441020027 is an apocalyptic number.

21441020027 is a deficient number, since it is larger than the sum of its proper divisors (3305617765).

21441020027 is a wasteful number, since it uses less digits than its factorization.

21441020027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30326869.

The product of its (nonzero) digits is 896, while the sum is 23.

Adding to 21441020027 its reverse (72002014412), we get a palindrome (93443034439).

The spelling of 21441020027 in words is "twenty-one billion, four hundred forty-one million, twenty thousand, twenty-seven".