21232344204 has 36 divisors (see below), whose sum is σ = 54683306496. Its totient is φ = 6943910688.

The previous prime is 21232344197. The next prime is 21232344227. The reversal of 21232344204 is 40244323212.

21232344204 is a `hidden beast` number, since 2 + 1 + 2 + 3 + 234 + 420 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5562124 + ... + 5565939.

It is an arithmetic number, because the mean of its divisors is an integer number (1518980736).

Almost surely, 2^21232344204 is an apocalyptic number.

It is an amenable number.

21232344204 is an abundant number, since it is smaller than the sum of its proper divisors (33450962292).

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

21232344204 is a wasteful number, since it uses less digits than its factorization.

21232344204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11128126 (or 11128121 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 21232344204 its reverse (40244323212), we get a palindrome (61476667416).

The spelling of 21232344204 in words is "twenty-one billion, two hundred thirty-two million, three hundred forty-four thousand, two hundred four".