21030144334 has 8 divisors (see below), whose sum is σ = 31580944200. Its totient is φ = 10503162936.

The previous prime is 21030144299. The next prime is 21030144341. The reversal of 21030144334 is 43344103012.

21030144334 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21030144299 and 21030144308.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5952409 + ... + 5955940.

It is an arithmetic number, because the mean of its divisors is an integer number (3947618025).

Almost surely, 2^21030144334 is an apocalyptic number.

21030144334 is a deficient number, since it is larger than the sum of its proper divisors (10550799866).

21030144334 is a wasteful number, since it uses less digits than its factorization.

21030144334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11909234.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 21030144334 its reverse (43344103012), we get a palindrome (64374247346).

The spelling of 21030144334 in words is "twenty-one billion, thirty million, one hundred forty-four thousand, three hundred thirty-four".