1340232713 has 2 divisors, whose sum is σ = 1340232714. Its totient is φ = 1340232712.

The previous prime is 1340232671. The next prime is 1340232721. The reversal of 1340232713 is 3172320431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1304076544 + 36156169 = 36112^2 + 6013^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340232713 - 2¹⁶ = 1340167177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1340232913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670116356 + 670116357.

It is an arithmetic number, because the mean of its divisors is an integer number (670116357).

Almost surely, 2^1340232713 is an apocalyptic number.

It is an amenable number.

1340232713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340232713 is an equidigital number, since it uses as much as digits as its factorization.

1340232713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 1340232713 is about 36609.1889148066. The cubic root of 1340232713 is about 1102.5375886458.

The spelling of 1340232713 in words is "one billion, three hundred forty million, two hundred thirty-two thousand, seven hundred thirteen".