1340440346603 has 2 divisors, whose sum is σ = 1340440346604. Its totient is φ = 1340440346602.

The previous prime is 1340440346599. The next prime is 1340440346621. The reversal of 1340440346603 is 3066430440431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1340440346603 - 2² = 1340440346599 is a prime.

It is not a weakly prime, because it can be changed into another prime (1340440346653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670220173301 + 670220173302.

It is an arithmetic number, because the mean of its divisors is an integer number (670220173302).

Almost surely, 2^{1340440346603} is an apocalyptic number.

1340440346603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340440346603 is an equidigital number, since it uses as much as digits as its factorization.

1340440346603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 38.

The spelling of 1340440346603 in words is "one trillion, three hundred forty billion, four hundred forty million, three hundred forty-six thousand, six hundred three".