21441224230453 has 8 divisors (see below), whose sum is σ = 22020961024160. Its totient is φ = 20861500291920.

The previous prime is 21441224230423. The next prime is 21441224230463. The reversal of 21441224230453 is 35403242214412.

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 21441224230453 - 2¹³ = 21441224222261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21441224230423) 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 7 ways as a sum of consecutive naturals, for example, 215938 + ... + 6552028.

It is an arithmetic number, because the mean of its divisors is an integer number (2752620128020).

Almost surely, 2^{21441224230453} is an apocalyptic number.

It is an amenable number.

21441224230453 is a deficient number, since it is larger than the sum of its proper divisors (579736793707).

21441224230453 is an equidigital number, since it uses as much as digits as its factorization.

21441224230453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6427587.

The product of its (nonzero) digits is 184320, while the sum is 37.

Adding to 21441224230453 its reverse (35403242214412), we get a palindrome (56844466444865).

The spelling of 21441224230453 in words is "twenty-one trillion, four hundred forty-one billion, two hundred twenty-four million, two hundred thirty thousand, four hundred fifty-three".