21001333010333 has 8 divisors (see below), whose sum is σ = 22675871920128. Its totient is φ = 19335230065584.

The previous prime is 21001333010321. The next prime is 21001333010377. The reversal of 21001333010333 is 33301033310012.

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

It is a cyclic number.

It is not a de Polignac number, because 21001333010333 - 2¹² = 21001333006237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21001333010299 and 21001333010308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21001333010033) 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, 2108986085 + ... + 2108996042.

It is an arithmetic number, because the mean of its divisors is an integer number (2834483990016).

Almost surely, 2^{21001333010333} is an apocalyptic number.

It is an amenable number.

21001333010333 is a deficient number, since it is larger than the sum of its proper divisors (1674538909795).

21001333010333 is a wasteful number, since it uses less digits than its factorization.

21001333010333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4217982523.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 21001333010333 its reverse (33301033310012), we get a palindrome (54302366320345).

The spelling of 21001333010333 in words is "twenty-one trillion, one billion, three hundred thirty-three million, ten thousand, three hundred thirty-three".