21333000323 has 2 divisors, whose sum is σ = 21333000324. Its totient is φ = 21333000322.

The previous prime is 21333000317. The next prime is 21333000407. The reversal of 21333000323 is 32300033312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21333000323 - 2¹⁴ = 21332983939 is a prime.

It is a super-2 number, since 2×21333000323² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21333000295 and 21333000304.

It is not a weakly prime, because it can be changed into another prime (21333080323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666500161 + 10666500162.

It is an arithmetic number, because the mean of its divisors is an integer number (10666500162).

Almost surely, 2^21333000323 is an apocalyptic number.

21333000323 is a deficient number, since it is larger than the sum of its proper divisors (1).

21333000323 is an equidigital number, since it uses as much as digits as its factorization.

21333000323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 21333000323 its reverse (32300033312), we get a palindrome (53633033635).

The spelling of 21333000323 in words is "twenty-one billion, three hundred thirty-three million, three hundred twenty-three", and thus it is an aban number.