21301300232 has 16 divisors (see below), whose sum is σ = 40179101760. Its totient is φ = 10586873104.

The previous prime is 21301300217. The next prime is 21301300253. The reversal of 21301300232 is 23200310312.

It is a self number, because there is not a number n which added to its sum of digits gives 21301300232.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7970708 + ... + 7973379.

It is an arithmetic number, because the mean of its divisors is an integer number (2511193860).

Almost surely, 2^21301300232 is an apocalyptic number.

It is an amenable number.

21301300232 is a deficient number, since it is larger than the sum of its proper divisors (18877801528).

21301300232 is a wasteful number, since it uses less digits than its factorization.

21301300232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15944260 (or 15944256 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21301300232 its reverse (23200310312), we get a palindrome (44501610544).

The spelling of 21301300232 in words is "twenty-one billion, three hundred one million, three hundred thousand, two hundred thirty-two".