1340243434303 has 2 divisors, whose sum is σ = 1340243434304. Its totient is φ = 1340243434302.

The previous prime is 1340243434289. The next prime is 1340243434421. The reversal of 1340243434303 is 3034343420431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1340243434303 - 2¹³ = 1340243426111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340243434703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670121717151 + 670121717152.

It is an arithmetic number, because the mean of its divisors is an integer number (670121717152).

Almost surely, 2^{1340243434303} is an apocalyptic number.

1340243434303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340243434303 is an equidigital number, since it uses as much as digits as its factorization.

1340243434303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 34.

Adding to 1340243434303 its reverse (3034343420431), we get a palindrome (4374586854734).

The spelling of 1340243434303 in words is "one trillion, three hundred forty billion, two hundred forty-three million, four hundred thirty-four thousand, three hundred three".