1311422463409 has 2 divisors, whose sum is σ = 1311422463410. Its totient is φ = 1311422463408.

The previous prime is 1311422463353. The next prime is 1311422463503. The reversal of 1311422463409 is 9043642241131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1301823950625 + 9598512784 = 1140975^2 + 97972^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311422463409 - 2¹¹ = 1311422461361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311422467409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655711231704 + 655711231705.

It is an arithmetic number, because the mean of its divisors is an integer number (655711231705).

Almost surely, 2^{1311422463409} is an apocalyptic number.

It is an amenable number.

1311422463409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311422463409 is an equidigital number, since it uses as much as digits as its factorization.

1311422463409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 1311422463409 in words is "one trillion, three hundred eleven billion, four hundred twenty-two million, four hundred sixty-three thousand, four hundred nine".