21002333010233 has 8 divisors (see below), whose sum is σ = 22410564424800. Its totient is φ = 19624386142368.

The previous prime is 21002333010173. The next prime is 21002333010287. The reversal of 21002333010233 is 33201033320012.

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 21002333010233 - 2²⁶ = 21002265901369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21002333010199 and 21002333010208.

It is not an unprimeable number, because it can be changed into a prime (21002333010133) 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, 7571135243 + ... + 7571138016.

It is an arithmetic number, because the mean of its divisors is an integer number (2801320553100).

Almost surely, 2^{21002333010233} is an apocalyptic number.

It is an amenable number.

21002333010233 is a deficient number, since it is larger than the sum of its proper divisors (1408231414567).

21002333010233 is a wasteful number, since it uses less digits than its factorization.

21002333010233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15142273351.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 21002333010233 its reverse (33201033320012), we get a palindrome (54203366330245).

The spelling of 21002333010233 in words is "twenty-one trillion, two billion, three hundred thirty-three million, ten thousand, two hundred thirty-three".