1340649034723 has 2 divisors, whose sum is σ = 1340649034724. Its totient is φ = 1340649034722.

The previous prime is 1340649034721. The next prime is 1340649034801. The reversal of 1340649034723 is 3274309460431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1340649034723 - 2¹ = 1340649034721 is a prime.

Together with 1340649034721, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1340649034721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670324517361 + 670324517362.

It is an arithmetic number, because the mean of its divisors is an integer number (670324517362).

Almost surely, 2^{1340649034723} is an apocalyptic number.

1340649034723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340649034723 is an equidigital number, since it uses as much as digits as its factorization.

1340649034723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 46.

The spelling of 1340649034723 in words is "one trillion, three hundred forty billion, six hundred forty-nine million, thirty-four thousand, seven hundred twenty-three".