21332343204 has 18 divisors (see below), whose sum is σ = 53923423190. Its totient is φ = 7110781056.

The previous prime is 21332343203. The next prime is 21332343259. The reversal of 21332343204 is 40234323312.

21332343204 is a `hidden beast` number, since 2 + 1 + 332 + 3 + 4 + 320 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20050560000 + 1281783204 = 141600^2 + 35802^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (21332343203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 296282509 + ... + 296282580.

Almost surely, 2^21332343204 is an apocalyptic number.

It is an amenable number.

21332343204 is an abundant number, since it is smaller than the sum of its proper divisors (32591079986).

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

21332343204 is a wasteful number, since it uses less digits than its factorization.

21332343204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592565099 (or 592565094 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 21332343204 its reverse (40234323312), we get a palindrome (61566666516).

The spelling of 21332343204 in words is "twenty-one billion, three hundred thirty-two million, three hundred forty-three thousand, two hundred four".