21303112330 has 8 divisors (see below), whose sum is σ = 38345602212. Its totient is φ = 8521244928.

The previous prime is 21303112319. The next prime is 21303112333. The reversal of 21303112330 is 3321130312.

21303112330 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 21251516841 + 51595489 = 145779^2 + 7183^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21303112298 and 21303112307.

It is not an unprimeable number, because it can be changed into a prime (21303112333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065155607 + ... + 1065155626.

Almost surely, 2^21303112330 is an apocalyptic number.

21303112330 is a deficient number, since it is larger than the sum of its proper divisors (17042489882).

21303112330 is a wasteful number, since it uses less digits than its factorization.

21303112330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130311240.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21303112330 its reverse (3321130312), we get a palindrome (24624242642).

The spelling of 21303112330 in words is "twenty-one billion, three hundred three million, one hundred twelve thousand, three hundred thirty".