21032032323320 has 32 divisors (see below), whose sum is σ = 50105724066000. Its totient is φ = 7917941580288.

The previous prime is 21032032323283. The next prime is 21032032323349. The reversal of 21032032323320 is 2332323023012.

It is a self number, because there is not a number n which added to its sum of digits gives 21032032323320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15464728970 + ... + 15464730329.

Almost surely, 2^{21032032323320} is an apocalyptic number.

21032032323320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21032032323320 is an abundant number, since it is smaller than the sum of its proper divisors (29073691742680).

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

21032032323320 is a wasteful number, since it uses less digits than its factorization.

21032032323320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30929459327 (or 30929459323 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 21032032323320 its reverse (2332323023012), we get a palindrome (23364355346332).

The spelling of 21032032323320 in words is "twenty-one trillion, thirty-two billion, thirty-two million, three hundred twenty-three thousand, three hundred twenty".