21241440330411 has 16 divisors (see below), whose sum is σ = 33242717429504. Its totient is φ = 11809912770144.

The previous prime is 21241440330379. The next prime is 21241440330419. The reversal of 21241440330411 is 11403304414212.

It is a happy number.

It is not a de Polignac number, because 21241440330411 - 2⁵ = 21241440330379 is a prime.

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13668879745 + ... + 13668881298.

It is an arithmetic number, because the mean of its divisors is an integer number (2077669839344).

Almost surely, 2^{21241440330411} is an apocalyptic number.

21241440330411 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

21241440330411 is a deficient number, since it is larger than the sum of its proper divisors (12001277099093).

21241440330411 is a wasteful number, since it uses less digits than its factorization.

21241440330411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27337761090.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 21241440330411 its reverse (11403304414212), we get a palindrome (32644744744623).

The spelling of 21241440330411 in words is "twenty-one trillion, two hundred forty-one billion, four hundred forty million, three hundred thirty thousand, four hundred eleven".