1340144444243 has 32 divisors (see below), whose sum is σ = 1501019009280. Its totient is φ = 1186139410560.

The previous prime is 1340144444239. The next prime is 1340144444251. The reversal of 1340144444243 is 3424444410431.

It is a cyclic number.

It is not a de Polignac number, because 1340144444243 - 2² = 1340144444239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1340144444197 and 1340144444206.

It is not an unprimeable number, because it can be changed into a prime (1340144446243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 294729296 + ... + 294733842.

It is an arithmetic number, because the mean of its divisors is an integer number (46906844040).

Almost surely, 2^{1340144444243} is an apocalyptic number.

1340144444243 is a deficient number, since it is larger than the sum of its proper divisors (160874565037).

1340144444243 is a wasteful number, since it uses less digits than its factorization.

1340144444243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8387.

The product of its (nonzero) digits is 294912, while the sum is 38.

Adding to 1340144444243 its reverse (3424444410431), we get a palindrome (4764588854674).

The spelling of 1340144444243 in words is "one trillion, three hundred forty billion, one hundred forty-four million, four hundred forty-four thousand, two hundred forty-three".