1344205442161 has 2 divisors, whose sum is σ = 1344205442162. Its totient is φ = 1344205442160.

The previous prime is 1344205442147. The next prime is 1344205442179. The reversal of 1344205442161 is 1612445024431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1072790491536 + 271414950625 = 1035756^2 + 520975^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344205442161 - 2¹¹ = 1344205440113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1344205442161.

It is not a weakly prime, because it can be changed into another prime (1344205442191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672102721080 + 672102721081.

It is an arithmetic number, because the mean of its divisors is an integer number (672102721081).

Almost surely, 2^{1344205442161} is an apocalyptic number.

It is an amenable number.

1344205442161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344205442161 is an equidigital number, since it uses as much as digits as its factorization.

1344205442161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 1344205442161 in words is "one trillion, three hundred forty-four billion, two hundred five million, four hundred forty-two thousand, one hundred sixty-one".