1276340003 has 2 divisors, whose sum is σ = 1276340004. Its totient is φ = 1276340002.

The previous prime is 1276339927. The next prime is 1276340071. The reversal of 1276340003 is 3000436721.

It is a strong prime.

It is an emirp because it is prime and its reverse (3000436721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1276340003 - 2²⁰ = 1275291427 is a prime.

It is not a weakly prime, because it can be changed into another prime (1276340203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638170001 + 638170002.

It is an arithmetic number, because the mean of its divisors is an integer number (638170002).

Almost surely, 2^1276340003 is an apocalyptic number.

1276340003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276340003 is an equidigital number, since it uses as much as digits as its factorization.

1276340003 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 1276340003 is about 35725.9010103314. The cubic root of 1276340003 is about 1084.7311878395.

Adding to 1276340003 its reverse (3000436721), we get a palindrome (4276776724).

The spelling of 1276340003 in words is "one billion, two hundred seventy-six million, three hundred forty thousand, three".