13205223349 has 2 divisors, whose sum is σ = 13205223350. Its totient is φ = 13205223348.

The previous prime is 13205223323. The next prime is 13205223359. The reversal of 13205223349 is 94332250231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13085758449 + 119464900 = 114393^2 + 10930^2 .

It is a cyclic number.

It is not a de Polignac number, because 13205223349 - 2⁷ = 13205223221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13205223359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6602611674 + 6602611675.

It is an arithmetic number, because the mean of its divisors is an integer number (6602611675).

Almost surely, 2^13205223349 is an apocalyptic number.

It is an amenable number.

13205223349 is a deficient number, since it is larger than the sum of its proper divisors (1).

13205223349 is an equidigital number, since it uses as much as digits as its factorization.

13205223349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 13205223349 in words is "thirteen billion, two hundred five million, two hundred twenty-three thousand, three hundred forty-nine".