21213330323032 has 16 divisors (see below), whose sum is σ = 39775188635640. Its totient is φ = 10606613353536.

The previous prime is 21213330323021. The next prime is 21213330323039. The reversal of 21213330323032 is 23032303331212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21213330323039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4707378 + ... + 8036545.

Almost surely, 2^{21213330323032} is an apocalyptic number.

It is an amenable number.

21213330323032 is a deficient number, since it is larger than the sum of its proper divisors (18561858312608).

21213330323032 is a wasteful number, since it uses less digits than its factorization.

21213330323032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12952002 (or 12951998 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 21213330323032 its reverse (23032303331212), we get a palindrome (44245633654244).

The spelling of 21213330323032 in words is "twenty-one trillion, two hundred thirteen billion, three hundred thirty million, three hundred twenty-three thousand, thirty-two".