21330020310232 has 16 divisors (see below), whose sum is σ = 40248525587760. Its totient is φ = 10597080153504.

The previous prime is 21330020310211. The next prime is 21330020310293. The reversal of 21330020310232 is 23201302003312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8491248868 + ... + 8491251379.

It is an arithmetic number, because the mean of its divisors is an integer number (2515532849235).

Almost surely, 2^{21330020310232} is an apocalyptic number.

It is an amenable number.

21330020310232 is a deficient number, since it is larger than the sum of its proper divisors (18918505277528).

21330020310232 is a wasteful number, since it uses less digits than its factorization.

21330020310232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16982500410 (or 16982500406 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21330020310232 its reverse (23201302003312), we get a palindrome (44531322313544).

The spelling of 21330020310232 in words is "twenty-one trillion, three hundred thirty billion, twenty million, three hundred ten thousand, two hundred thirty-two".