21042333132 has 24 divisors (see below), whose sum is σ = 49584906672. Its totient is φ = 6944664000.

The previous prime is 21042333121. The next prime is 21042333157. The reversal of 21042333132 is 23133324012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8679619 + ... + 8682042.

It is an arithmetic number, because the mean of its divisors is an integer number (2066037778).

Almost surely, 2^21042333132 is an apocalyptic number.

It is an amenable number.

21042333132 is an abundant number, since it is smaller than the sum of its proper divisors (28542573540).

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

21042333132 is a wasteful number, since it uses less digits than its factorization.

21042333132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17361769 (or 17361767 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21042333132 its reverse (23133324012), we get a palindrome (44175657144).

The spelling of 21042333132 in words is "twenty-one billion, forty-two million, three hundred thirty-three thousand, one hundred thirty-two".