21330000003307 has 2 divisors, whose sum is σ = 21330000003308. Its totient is φ = 21330000003306.

The previous prime is 21330000003281. The next prime is 21330000003313. The reversal of 21330000003307 is 70330000003312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21330000003307 is a prime.

It is not a weakly prime, because it can be changed into another prime (21330000007307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10665000001653 + 10665000001654.

It is an arithmetic number, because the mean of its divisors is an integer number (10665000001654).

Almost surely, 2^{21330000003307} is an apocalyptic number.

21330000003307 is a deficient number, since it is larger than the sum of its proper divisors (1).

21330000003307 is an equidigital number, since it uses as much as digits as its factorization.

21330000003307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 22.

Adding to 21330000003307 its reverse (70330000003312), we get a palindrome (91660000006619).

The spelling of 21330000003307 in words is "twenty-one trillion, three hundred thirty billion, three thousand, three hundred seven".