21241440330410 has 8 divisors (see below), whose sum is σ = 38234592594756. Its totient is φ = 8496576132160.

The previous prime is 21241440330379. The next prime is 21241440330419. The reversal of 21241440330410 is 1403304414212.

It can be written as a sum of positive squares in 2 ways, for example, as 20234406003289 + 1007034327121 = 4498267^2 + 1003511^2 .

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

It is not an unprimeable number, because it can be changed into a prime (21241440330419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062072016511 + ... + 1062072016530.

Almost surely, 2^{21241440330410} is an apocalyptic number.

21241440330410 is a deficient number, since it is larger than the sum of its proper divisors (16993152264346).

21241440330410 is a wasteful number, since it uses less digits than its factorization.

21241440330410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124144033048.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 21241440330410 its reverse (1403304414212), we get a palindrome (22644744744622).

The spelling of 21241440330410 in words is "twenty-one trillion, two hundred forty-one billion, four hundred forty million, three hundred thirty thousand, four hundred ten".