13043220349 has 2 divisors, whose sum is σ = 13043220350. Its totient is φ = 13043220348.

The previous prime is 13043220347. The next prime is 13043220373. The reversal of 13043220349 is 94302234031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11839616100 + 1203604249 = 108810^2 + 34693^2 .

It is a cyclic number.

It is not a de Polignac number, because 13043220349 - 2¹ = 13043220347 is a prime.

Together with 13043220347, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13043220349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13043220343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6521610174 + 6521610175.

It is an arithmetic number, because the mean of its divisors is an integer number (6521610175).

Almost surely, 2^13043220349 is an apocalyptic number.

It is an amenable number.

13043220349 is a deficient number, since it is larger than the sum of its proper divisors (1).

13043220349 is an equidigital number, since it uses as much as digits as its factorization.

13043220349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 13043220349 in words is "thirteen billion, forty-three million, two hundred twenty thousand, three hundred forty-nine".