21444052030413 has 16 divisors (see below), whose sum is σ = 29204447543040. Its totient is φ = 13989929691456.

The previous prime is 21444052030381. The next prime is 21444052030441. The reversal of 21444052030413 is 31403025044412.

It is not a de Polignac number, because 21444052030413 - 2⁵ = 21444052030381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21444052030213) 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, 9487078 + ... + 11527911.

It is an arithmetic number, because the mean of its divisors is an integer number (1825277971440).

Almost surely, 2^{21444052030413} is an apocalyptic number.

It is an amenable number.

21444052030413 is a deficient number, since it is larger than the sum of its proper divisors (7760395512627).

21444052030413 is a wasteful number, since it uses less digits than its factorization.

21444052030413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21022276.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 21444052030413 its reverse (31403025044412), we get a palindrome (52847077074825).

The spelling of 21444052030413 in words is "twenty-one trillion, four hundred forty-four billion, fifty-two million, thirty thousand, four hundred thirteen".