21330113333003 has 4 divisors (see below), whose sum is σ = 21336856969848. Its totient is φ = 21323369696160.

The previous prime is 21330113332981. The next prime is 21330113333027. The reversal of 21330113333003 is 30033331103312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21330113333003 - 2⁴⁰ = 20230601705227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21330113333063) 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, 3371813678 + ... + 3371820003.

It is an arithmetic number, because the mean of its divisors is an integer number (5334214242462).

Almost surely, 2^{21330113333003} is an apocalyptic number.

21330113333003 is a deficient number, since it is larger than the sum of its proper divisors (6743636845).

21330113333003 is an equidigital number, since it uses as much as digits as its factorization.

21330113333003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6743636844.

The product of its (nonzero) digits is 4374, while the sum is 26.

Adding to 21330113333003 its reverse (30033331103312), we get a palindrome (51363444436315).

The spelling of 21330113333003 in words is "twenty-one trillion, three hundred thirty billion, one hundred thirteen million, three hundred thirty-three thousand, three".