21303100112 has 160 divisors (see below), whose sum is σ = 52371505152. Its totient is φ = 8179218432.

The previous prime is 21303100081. The next prime is 21303100123. The reversal of 21303100112 is 21100130312.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9939713 + ... + 9941855.

Almost surely, 2^21303100112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21303100112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26185752576).

21303100112 is an abundant number, since it is smaller than the sum of its proper divisors (31068405040).

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

21303100112 is a wasteful number, since it uses less digits than its factorization.

21303100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425 (or 2419 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21303100112 its reverse (21100130312), we get a palindrome (42403230424).

The spelling of 21303100112 in words is "twenty-one billion, three hundred three million, one hundred thousand, one hundred twelve".