1311230650459 has 2 divisors, whose sum is σ = 1311230650460. Its totient is φ = 1311230650458.

The previous prime is 1311230650453. The next prime is 1311230650511. The reversal of 1311230650459 is 9540560321131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1311230650459 - 2⁹ = 1311230649947 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311230650453) 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, 655615325229 + 655615325230.

It is an arithmetic number, because the mean of its divisors is an integer number (655615325230).

Almost surely, 2^{1311230650459} is an apocalyptic number.

1311230650459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311230650459 is an equidigital number, since it uses as much as digits as its factorization.

1311230650459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 1311230650459 in words is "one trillion, three hundred eleven billion, two hundred thirty million, six hundred fifty thousand, four hundred fifty-nine".