21333332313329 has 2 divisors, whose sum is σ = 21333332313330. Its totient is φ = 21333332313328.

The previous prime is 21333332313301. The next prime is 21333332313343. The reversal of 21333332313329 is 92331323333312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21202341160000 + 130991153329 = 4604600^2 + 361927^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21333332313329 is a prime.

It is a super-2 number, since 2×21333332313329² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21333332313229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666666156664 + 10666666156665.

It is an arithmetic number, because the mean of its divisors is an integer number (10666666156665).

Almost surely, 2^{21333332313329} is an apocalyptic number.

It is an amenable number.

21333332313329 is a deficient number, since it is larger than the sum of its proper divisors (1).

21333332313329 is an equidigital number, since it uses as much as digits as its factorization.

21333332313329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 472392, while the sum is 41.

The spelling of 21333332313329 in words is "twenty-one trillion, three hundred thirty-three billion, three hundred thirty-two million, three hundred thirteen thousand, three hundred twenty-nine".