21330000003313 has 2 divisors, whose sum is σ = 21330000003314. Its totient is φ = 21330000003312.

The previous prime is 21330000003307. The next prime is 21330000003343. The reversal of 21330000003313 is 31330000003312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16193485436769 + 5136514566544 = 4024113^2 + 2266388^2 .

It is a cyclic number.

It is not a de Polignac number, because 21330000003313 - 2⁵ = 21330000003281 is a prime.

It is not a weakly prime, because it can be changed into another prime (21330000003343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10665000001656 + 10665000001657.

It is an arithmetic number, because the mean of its divisors is an integer number (10665000001657).

Almost surely, 2^{21330000003313} is an apocalyptic number.

It is an amenable number.

21330000003313 is a deficient number, since it is larger than the sum of its proper divisors (1).

21330000003313 is an equidigital number, since it uses as much as digits as its factorization.

21330000003313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 21330000003313 its reverse (31330000003312), we get a palindrome (52660000006625).

Subtracting 21330000003313 from its reverse (31330000003312), we obtain a palindrome (9999999999999).

The spelling of 21330000003313 in words is "twenty-one trillion, three hundred thirty billion, three thousand, three hundred thirteen".