21303111003330 has 64 divisors (see below), whose sum is σ = 55256293024128. Its totient is φ = 5225181319680.

The previous prime is 21303111003329. The next prime is 21303111003331. The reversal of 21303111003330 is 3330011130312.

It is an interprime number because it is at equal distance from previous prime (21303111003329) and next prime (21303111003331).

It is a junction number, because it is equal to n+sod(n) for n = 21303111003297 and 21303111003306.

It is not an unprimeable number, because it can be changed into a prime (21303111003331) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 97085004 + ... + 97304183.

It is an arithmetic number, because the mean of its divisors is an integer number (863379578502).

Almost surely, 2^{21303111003330} is an apocalyptic number.

21303111003330 is an abundant number, since it is smaller than the sum of its proper divisors (33953182020798).

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

21303111003330 is a wasteful number, since it uses less digits than its factorization.

21303111003330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194389491.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 21303111003330 its reverse (3330011130312), we get a palindrome (24633122133642).

The spelling of 21303111003330 in words is "twenty-one trillion, three hundred three billion, one hundred eleven million, three thousand, three hundred thirty".