21302303303330 has 64 divisors (see below), whose sum is σ = 46131958667520. Its totient is φ = 6918694963200.

The previous prime is 21302303303321. The next prime is 21302303303363. The reversal of 21302303303330 is 3330330320312.

It is a self number, because there is not a number n which added to its sum of digits gives 21302303303330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16289390 + ... + 17548470.

It is an arithmetic number, because the mean of its divisors is an integer number (720811854180).

Almost surely, 2^{21302303303330} is an apocalyptic number.

21302303303330 is an abundant number, since it is smaller than the sum of its proper divisors (24829655364190).

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

21302303303330 is a wasteful number, since it uses less digits than its factorization.

21302303303330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271835.

The product of its (nonzero) digits is 8748, while the sum is 26.

Adding to 21302303303330 its reverse (3330330320312), we get a palindrome (24632633623642).

The spelling of 21302303303330 in words is "twenty-one trillion, three hundred two billion, three hundred three million, three hundred three thousand, three hundred thirty".