21342034230 has 32 divisors (see below), whose sum is σ = 55877326848. Its totient is φ = 5173826400.

The previous prime is 21342034163. The next prime is 21342034271. The reversal of 21342034230 is 3243024312.

It is a self number, because there is not a number n which added to its sum of digits gives 21342034230.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 32336086 + ... + 32336745.

It is an arithmetic number, because the mean of its divisors is an integer number (1746166464).

Almost surely, 2^21342034230 is an apocalyptic number.

21342034230 is an abundant number, since it is smaller than the sum of its proper divisors (34535292618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21342034230 is a wasteful number, since it uses less digits than its factorization.

21342034230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64672852.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 21342034230 its reverse (3243024312), we get a palindrome (24585058542).

The spelling of 21342034230 in words is "twenty-one billion, three hundred forty-two million, thirty-four thousand, two hundred thirty".