21233124304 has 80 divisors (see below), whose sum is σ = 49820168448. Its totient is φ = 8558032896.

The previous prime is 21233124281. The next prime is 21233124323. The reversal of 21233124304 is 40342133212.

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, 3037197 + ... + 3044179.

Almost surely, 2^21233124304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21233124304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24910084224).

21233124304 is an abundant number, since it is smaller than the sum of its proper divisors (28587044144).

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

21233124304 is a wasteful number, since it uses less digits than its factorization.

21233124304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8612 (or 8606 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 21233124304 its reverse (40342133212), we get a palindrome (61575257516).

The spelling of 21233124304 in words is "twenty-one billion, two hundred thirty-three million, one hundred twenty-four thousand, three hundred four".