13220313329 has 2 divisors, whose sum is σ = 13220313330. Its totient is φ = 13220313328.

The previous prime is 13220313319. The next prime is 13220313341. The reversal of 13220313329 is 92331302231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7752450304 + 5467863025 = 88048^2 + 73945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13220313329 is a prime.

It is not a weakly prime, because it can be changed into another prime (13220313319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610156664 + 6610156665.

It is an arithmetic number, because the mean of its divisors is an integer number (6610156665).

Almost surely, 2^13220313329 is an apocalyptic number.

It is an amenable number.

13220313329 is a deficient number, since it is larger than the sum of its proper divisors (1).

13220313329 is an equidigital number, since it uses as much as digits as its factorization.

13220313329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 29.

The spelling of 13220313329 in words is "thirteen billion, two hundred twenty million, three hundred thirteen thousand, three hundred twenty-nine".