21001230330333 has 8 divisors (see below), whose sum is σ = 30547244116896. Its totient is φ = 12728018382000.

The previous prime is 21001230330277. The next prime is 21001230330349. The reversal of 21001230330333 is 33303303210012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21001230330333 - 2¹⁰ = 21001230329309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21001230350333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318200459518 + ... + 318200459583.

It is an arithmetic number, because the mean of its divisors is an integer number (3818405514612).

Almost surely, 2^{21001230330333} is an apocalyptic number.

It is an amenable number.

21001230330333 is a deficient number, since it is larger than the sum of its proper divisors (9546013786563).

21001230330333 is a wasteful number, since it uses less digits than its factorization.

21001230330333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636400919115.

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 21001230330333 its reverse (33303303210012), we get a palindrome (54304533540345).

The spelling of 21001230330333 in words is "twenty-one trillion, one billion, two hundred thirty million, three hundred thirty thousand, three hundred thirty-three".