21233321301232 has 20 divisors (see below), whose sum is σ = 41144903753800. Its totient is φ = 10615281622848.

The previous prime is 21233321301151. The next prime is 21233321301251. The reversal of 21233321301232 is 23210312333212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21233321301232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86062203 + ... + 86308570.

It is an arithmetic number, because the mean of its divisors is an integer number (2057245187690).

Almost surely, 2^{21233321301232} is an apocalyptic number.

It is an amenable number.

21233321301232 is a deficient number, since it is larger than the sum of its proper divisors (19911582452568).

21233321301232 is a wasteful number, since it uses less digits than its factorization.

21233321301232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172378480 (or 172378474 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 21233321301232 its reverse (23210312333212), we get a palindrome (44443633634444).

The spelling of 21233321301232 in words is "twenty-one trillion, two hundred thirty-three billion, three hundred twenty-one million, three hundred one thousand, two hundred thirty-two".