21032322330 has 16 divisors (see below), whose sum is σ = 50477573664. Its totient is φ = 5608619280.

The previous prime is 21032322319. The next prime is 21032322347. The reversal of 21032322330 is 3322323012.

It is a junction number, because it is equal to n+sod(n) for n = 21032322297 and 21032322306.

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 7 ways as a sum of consecutive naturals, for example, 350538676 + ... + 350538735.

It is an arithmetic number, because the mean of its divisors is an integer number (3154848354).

Almost surely, 2^21032322330 is an apocalyptic number.

21032322330 is an abundant number, since it is smaller than the sum of its proper divisors (29445251334).

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

21032322330 is a wasteful number, since it uses less digits than its factorization.

21032322330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701077421.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21032322330 its reverse (3322323012), we get a palindrome (24354645342).

The spelling of 21032322330 in words is "twenty-one billion, thirty-two million, three hundred twenty-two thousand, three hundred thirty".