21033352132 has 48 divisors (see below), whose sum is σ = 40671991360. Its totient is φ = 9456144768.

The previous prime is 21033352129. The next prime is 21033352169. The reversal of 21033352132 is 23125333012.

It is a junction number, because it is equal to n+sod(n) for n = 21033352097 and 21033352106.

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, 821419 + ... + 846637.

Almost surely, 2^21033352132 is an apocalyptic number.

It is an amenable number.

21033352132 is a deficient number, since it is larger than the sum of its proper divisors (19638639228).

21033352132 is a wasteful number, since it uses less digits than its factorization.

21033352132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25652 (or 25650 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 21033352132 its reverse (23125333012), we get a palindrome (44158685144).

The spelling of 21033352132 in words is "twenty-one billion, thirty-three million, three hundred fifty-two thousand, one hundred thirty-two".