1340312334247 has 2 divisors, whose sum is σ = 1340312334248. Its totient is φ = 1340312334246.

The previous prime is 1340312334203. The next prime is 1340312334253. The reversal of 1340312334247 is 7424332130431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1340312334247 - 2¹⁹ = 1340311809959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340312334947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670156167123 + 670156167124.

It is an arithmetic number, because the mean of its divisors is an integer number (670156167124).

Almost surely, 2^{1340312334247} is an apocalyptic number.

1340312334247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340312334247 is an equidigital number, since it uses as much as digits as its factorization.

1340312334247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 37.

Adding to 1340312334247 its reverse (7424332130431), we get a palindrome (8764644464678).

The spelling of 1340312334247 in words is "one trillion, three hundred forty billion, three hundred twelve million, three hundred thirty-four thousand, two hundred forty-seven".