1344320243 has 16 divisors (see below), whose sum is σ = 1650240000. Its totient is φ = 1091623176.

The previous prime is 1344320171. The next prime is 1344320267. The reversal of 1344320243 is 3420234431.

It is not a de Polignac number, because 1344320243 - 2¹⁰ = 1344319219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1344320293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96623 + ... + 109656.

It is an arithmetic number, because the mean of its divisors is an integer number (103140000).

Almost surely, 2^1344320243 is an apocalyptic number.

1344320243 is a deficient number, since it is larger than the sum of its proper divisors (305919757).

1344320243 is an equidigital number, since it uses as much as digits as its factorization.

1344320243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206319 (or 206305 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 1344320243 is about 36664.9729714887. The cubic root of 1344320243 is about 1103.6573149959.

Adding to 1344320243 its reverse (3420234431), we get a palindrome (4764554674).

The spelling of 1344320243 in words is "one billion, three hundred forty-four million, three hundred twenty thousand, two hundred forty-three".