1340230342243 has 16 divisors (see below), whose sum is σ = 1463518730016. Its totient is φ = 1219884007680.

The previous prime is 1340230342211. The next prime is 1340230342247. The reversal of 1340230342243 is 3422430320431.

It is a happy number.

It is not a de Polignac number, because 1340230342243 - 2⁵ = 1340230342211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340230342247) 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 15 ways as a sum of consecutive naturals, for example, 629880 + ... + 1754197.

It is an arithmetic number, because the mean of its divisors is an integer number (91469920626).

Almost surely, 2^{1340230342243} is an apocalyptic number.

1340230342243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1340230342243 is a deficient number, since it is larger than the sum of its proper divisors (123288387773).

1340230342243 is a wasteful number, since it uses less digits than its factorization.

1340230342243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384694.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 1340230342243 its reverse (3422430320431), we get a palindrome (4762660662674).

The spelling of 1340230342243 in words is "one trillion, three hundred forty billion, two hundred thirty million, three hundred forty-two thousand, two hundred forty-three".