21300332232 has 16 divisors (see below), whose sum is σ = 53250830640. Its totient is φ = 7100110736.

The previous prime is 21300332227. The next prime is 21300332303. The reversal of 21300332232 is 23223300312.

It is a junction number, because it is equal to n+sod(n) for n = 21300332199 and 21300332208.

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 3 ways as a sum of consecutive naturals, for example, 443756898 + ... + 443756945.

It is an arithmetic number, because the mean of its divisors is an integer number (3328176915).

Almost surely, 2^21300332232 is an apocalyptic number.

It is an amenable number.

21300332232 is an abundant number, since it is smaller than the sum of its proper divisors (31950498408).

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

21300332232 is a wasteful number, since it uses less digits than its factorization.

21300332232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887513852 (or 887513848 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21300332232 its reverse (23223300312), we get a palindrome (44523632544).

The spelling of 21300332232 in words is "twenty-one billion, three hundred million, three hundred thirty-two thousand, two hundred thirty-two".