21442103543330 has 8 divisors (see below), whose sum is σ = 38595786378012. Its totient is φ = 8576841417328.

The previous prime is 21442103543309. The next prime is 21442103543339. The reversal of 21442103543330 is 3334530124412.

It can be written as a sum of positive squares in 2 ways, for example, as 20275018722841 + 1167084820489 = 4502779^2 + 1080317^2 .

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 (21442103543339) 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 3 ways as a sum of consecutive naturals, for example, 1072105177157 + ... + 1072105177176.

Almost surely, 2^{21442103543330} is an apocalyptic number.

21442103543330 is a deficient number, since it is larger than the sum of its proper divisors (17153682834682).

21442103543330 is a wasteful number, since it uses less digits than its factorization.

21442103543330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144210354340.

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 21442103543330 its reverse (3334530124412), we get a palindrome (24776633667742).

The spelling of 21442103543330 in words is "twenty-one trillion, four hundred forty-two billion, one hundred three million, five hundred forty-three thousand, three hundred thirty".