1311423352489 has 2 divisors, whose sum is σ = 1311423352490. Its totient is φ = 1311423352488.

The previous prime is 1311423352469. The next prime is 1311423352501. The reversal of 1311423352489 is 9842533241131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1308546102889 + 2877249600 = 1143917^2 + 53640^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311423352489 - 2¹⁷ = 1311423221417 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311423352439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655711676244 + 655711676245.

It is an arithmetic number, because the mean of its divisors is an integer number (655711676245).

Almost surely, 2^{1311423352489} is an apocalyptic number.

It is an amenable number.

1311423352489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311423352489 is an equidigital number, since it uses as much as digits as its factorization.

1311423352489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 46.

The spelling of 1311423352489 in words is "one trillion, three hundred eleven billion, four hundred twenty-three million, three hundred fifty-two thousand, four hundred eighty-nine".