21041024441 has 8 divisors (see below), whose sum is σ = 22153173120. Its totient is φ = 19929348432.

The previous prime is 21041024419. The next prime is 21041024467. The reversal of 21041024441 is 14442014012.

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 21041024441 - 2¹⁸ = 21040762297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21041024341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24890 + ... + 206643.

It is an arithmetic number, because the mean of its divisors is an integer number (2769146640).

Almost surely, 2^21041024441 is an apocalyptic number.

It is an amenable number.

21041024441 is a deficient number, since it is larger than the sum of its proper divisors (1112148679).

21041024441 is a wasteful number, since it uses less digits than its factorization.

21041024441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236335.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 21041024441 its reverse (14442014012), we get a palindrome (35483038453).

The spelling of 21041024441 in words is "twenty-one billion, forty-one million, twenty-four thousand, four hundred forty-one".