21442011024413 has 16 divisors (see below), whose sum is σ = 25350681041280. Its totient is φ = 17744748415296.

The previous prime is 21442011024407. The next prime is 21442011024433. The reversal of 21442011024413 is 31442011024412.

It is not a de Polignac number, because 21442011024413 - 2²² = 21442006830109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21442011024433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9066170 + ... + 11183892.

It is an arithmetic number, because the mean of its divisors is an integer number (1584417565080).

Almost surely, 2^{21442011024413} is an apocalyptic number.

It is an amenable number.

21442011024413 is a deficient number, since it is larger than the sum of its proper divisors (3908670016867).

21442011024413 is a wasteful number, since it uses less digits than its factorization.

21442011024413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167636.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 21442011024413 its reverse (31442011024412), we get a palindrome (52884022048825).

Subtracting 21442011024413 from its reverse (31442011024412), we obtain a palindrome (9999999999999).

The spelling of 21442011024413 in words is "twenty-one trillion, four hundred forty-two billion, eleven million, twenty-four thousand, four hundred thirteen".