21032330232 has 64 divisors (see below), whose sum is σ = 55712862720. Its totient is φ = 6593750528.

The previous prime is 21032330219. The next prime is 21032330251. The reversal of 21032330232 is 23203323012.

It is a junction number, because it is equal to n+sod(n) for n = 21032330199 and 21032330208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589363 + ... + 624029.

It is an arithmetic number, because the mean of its divisors is an integer number (870513480).

Almost surely, 2^21032330232 is an apocalyptic number.

It is an amenable number.

21032330232 is an abundant number, since it is smaller than the sum of its proper divisors (34680532488).

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

21032330232 is a wasteful number, since it uses less digits than its factorization.

21032330232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36180 (or 36176 counting only the distinct ones).

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

Adding to 21032330232 its reverse (23203323012), we get a palindrome (44235653244).

The spelling of 21032330232 in words is "twenty-one billion, thirty-two million, three hundred thirty thousand, two hundred thirty-two".