21324233032 has 16 divisors (see below), whose sum is σ = 40274785260. Its totient is φ = 10584290304.

The previous prime is 21324233027. The next prime is 21324233123. The reversal of 21324233032 is 23033242312.

It can be written as a sum of positive squares in 2 ways, for example, as 18543358276 + 2780874756 = 136174^2 + 52734^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21324232988 and 21324233006.

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, 9727113 + ... + 9729304.

Almost surely, 2^21324233032 is an apocalyptic number.

It is an amenable number.

21324233032 is a deficient number, since it is larger than the sum of its proper divisors (18950552228).

21324233032 is a wasteful number, since it uses less digits than its factorization.

21324233032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19456560 (or 19456556 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 21324233032 its reverse (23033242312), we get a palindrome (44357475344).

The spelling of 21324233032 in words is "twenty-one billion, three hundred twenty-four million, two hundred thirty-three thousand, thirty-two".