21331301133233 has 16 divisors (see below), whose sum is σ = 26260890074496. Its totient is φ = 16873025207040.

The previous prime is 21331301133209. The next prime is 21331301133299. The reversal of 21331301133233 is 33233110313312.

It is a cyclic number.

It is not a de Polignac number, because 21331301133233 - 2²⁶ = 21331234024369 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21331301133196 and 21331301133205.

It is not an unprimeable number, because it can be changed into a prime (21331301133433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30820991 + ... + 31505492.

It is an arithmetic number, because the mean of its divisors is an integer number (1641305629656).

Almost surely, 2^{21331301133233} is an apocalyptic number.

It is an amenable number.

21331301133233 is a deficient number, since it is larger than the sum of its proper divisors (4929588941263).

21331301133233 is a wasteful number, since it uses less digits than its factorization.

21331301133233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62330264.

The product of its (nonzero) digits is 8748, while the sum is 29.

Adding to 21331301133233 its reverse (33233110313312), we get a palindrome (54564411446545).

The spelling of 21331301133233 in words is "twenty-one trillion, three hundred thirty-one billion, three hundred one million, one hundred thirty-three thousand, two hundred thirty-three".