21300023032 has 16 divisors (see below), whose sum is σ = 39939091200. Its totient is φ = 10649598720.

The previous prime is 21300022973. The next prime is 21300023033. The reversal of 21300023032 is 23032000312.

It is a junction number, because it is equal to n+sod(n) for n = 21300022997 and 21300023015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300023033) by changing a digit.

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, 384969 + ... + 436807.

It is an arithmetic number, because the mean of its divisors is an integer number (2496193200).

Almost surely, 2^21300023032 is an apocalyptic number.

It is an amenable number.

21300023032 is a deficient number, since it is larger than the sum of its proper divisors (18639068168).

21300023032 is a wasteful number, since it uses less digits than its factorization.

21300023032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103206 (or 103202 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 21300023032 its reverse (23032000312), we get a palindrome (44332023344).

The spelling of 21300023032 in words is "twenty-one billion, three hundred million, twenty-three thousand, thirty-two".