13310330021 has 2 divisors, whose sum is σ = 13310330022. Its totient is φ = 13310330020.

The previous prime is 13310329999. The next prime is 13310330029. The reversal of 13310330021 is 12003301331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8720944996 + 4589385025 = 93386^2 + 67745^2 .

It is a cyclic number.

It is not a de Polignac number, because 13310330021 - 2⁶ = 13310329957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13310330029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6655165010 + 6655165011.

It is an arithmetic number, because the mean of its divisors is an integer number (6655165011).

Almost surely, 2^13310330021 is an apocalyptic number.

It is an amenable number.

13310330021 is a deficient number, since it is larger than the sum of its proper divisors (1).

13310330021 is an equidigital number, since it uses as much as digits as its factorization.

13310330021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 13310330021 its reverse (12003301331), we get a palindrome (25313631352).

The spelling of 13310330021 in words is "thirteen billion, three hundred ten million, three hundred thirty thousand, twenty-one".