1340304515343 has 18 divisors (see below), whose sum is σ = 2056576444104. Its totient is φ = 840975380544.

The previous prime is 1340304515327. The next prime is 1340304515509. The reversal of 1340304515343 is 3435154030431.

1340304515343 is a `hidden beast` number, since 1 + 3 + 4 + 0 + 304 + 5 + 1 + 5 + 343 = 666.

It is not a de Polignac number, because 1340304515343 - 2⁴ = 1340304515327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1340304515298 and 1340304515307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340304515843) 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 17 ways as a sum of consecutive naturals, for example, 257649171 + ... + 257654372.

Almost surely, 2^{1340304515343} is an apocalyptic number.

1340304515343 is a deficient number, since it is larger than the sum of its proper divisors (716271928761).

1340304515343 is a wasteful number, since it uses less digits than its factorization.

1340304515343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515303583 (or 515303563 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 1340304515343 its reverse (3435154030431), we get a palindrome (4775458545774).

The spelling of 1340304515343 in words is "one trillion, three hundred forty billion, three hundred four million, five hundred fifteen thousand, three hundred forty-three".