21333103007233 has 2 divisors, whose sum is σ = 21333103007234. Its totient is φ = 21333103007232.

The previous prime is 21333103007231. The next prime is 21333103007287. The reversal of 21333103007233 is 33270030133312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20979853462129 + 353249545104 = 4580377^2 + 594348^2 .

It is a cyclic number.

It is not a de Polignac number, because 21333103007233 - 2¹ = 21333103007231 is a prime.

Together with 21333103007231, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 21333103007195 and 21333103007204.

It is not a weakly prime, because it can be changed into another prime (21333103007231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666551503616 + 10666551503617.

It is an arithmetic number, because the mean of its divisors is an integer number (10666551503617).

Almost surely, 2^{21333103007233} is an apocalyptic number.

It is an amenable number.

21333103007233 is a deficient number, since it is larger than the sum of its proper divisors (1).

21333103007233 is an equidigital number, since it uses as much as digits as its factorization.

21333103007233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 31.

The spelling of 21333103007233 in words is "twenty-one trillion, three hundred thirty-three billion, one hundred three million, seven thousand, two hundred thirty-three".