21233034176 has 28 divisors (see below), whose sum is σ = 42152300760. Its totient is φ = 10611982080.

The previous prime is 21233034169. The next prime is 21233034217. The reversal of 21233034176 is 67143033212.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

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, 82715 + ... + 222053.

Almost surely, 2^21233034176 is an apocalyptic number.

It is an amenable number.

21233034176 is a deficient number, since it is larger than the sum of its proper divisors (20919266584).

21233034176 is a wasteful number, since it uses less digits than its factorization.

21233034176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141732 (or 141722 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

Adding to 21233034176 its reverse (67143033212), we get a palindrome (88376067388).

The spelling of 21233034176 in words is "twenty-one billion, two hundred thirty-three million, thirty-four thousand, one hundred seventy-six".