1340104043 has 2 divisors, whose sum is σ = 1340104044. Its totient is φ = 1340104042.

The previous prime is 1340104037. The next prime is 1340104081. The reversal of 1340104043 is 3404010431.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3404010431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1340104043 - 2⁴ = 1340104027 is a prime.

It is not a weakly prime, because it can be changed into another prime (1340104093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670052021 + 670052022.

It is an arithmetic number, because the mean of its divisors is an integer number (670052022).

Almost surely, 2^1340104043 is an apocalyptic number.

1340104043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340104043 is an equidigital number, since it uses as much as digits as its factorization.

1340104043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1340104043 is about 36607.4315269455. The cubic root of 1340104043 is about 1102.5023042134.

Adding to 1340104043 its reverse (3404010431), we get a palindrome (4744114474).

The spelling of 1340104043 in words is "one billion, three hundred forty million, one hundred four thousand, forty-three".