21230113302330 has 32 divisors (see below), whose sum is σ = 50953389246144. Its totient is φ = 5661239400576.

The previous prime is 21230113302329. The next prime is 21230113302337. The reversal of 21230113302330 is 3320331103212.

It is a self number, because there is not a number n which added to its sum of digits gives 21230113302330.

It is not an unprimeable number, because it can be changed into a prime (21230113302337) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6364192 + ... + 9108411.

It is an arithmetic number, because the mean of its divisors is an integer number (1592293413942).

Almost surely, 2^{21230113302330} is an apocalyptic number.

21230113302330 is an abundant number, since it is smaller than the sum of its proper divisors (29723275943814).

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

21230113302330 is a wasteful number, since it uses less digits than its factorization.

21230113302330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15518350.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21230113302330 its reverse (3320331103212), we get a palindrome (24550444405542).

The spelling of 21230113302330 in words is "twenty-one trillion, two hundred thirty billion, one hundred thirteen million, three hundred two thousand, three hundred thirty".