21300320112 has 80 divisors (see below), whose sum is σ = 55619297280. Its totient is φ = 7023856896.

The previous prime is 21300320089. The next prime is 21300320141. The reversal of 21300320112 is 21102300312.

It is a junction number, because it is equal to n+sod(n) for n = 21300320091 and 21300320100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2183598 + ... + 2193330.

It is an arithmetic number, because the mean of its divisors is an integer number (695241216).

Almost surely, 2^21300320112 is an apocalyptic number.

It is an amenable number.

21300320112 is an abundant number, since it is smaller than the sum of its proper divisors (34318977168).

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

21300320112 is a wasteful number, since it uses less digits than its factorization.

21300320112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10230 (or 10224 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21300320112 its reverse (21102300312), we get a palindrome (42402620424).

The spelling of 21300320112 in words is "twenty-one billion, three hundred million, three hundred twenty thousand, one hundred twelve".