1311061324399 has 2 divisors, whose sum is σ = 1311061324400. Its totient is φ = 1311061324398.

The previous prime is 1311061324387. The next prime is 1311061324537. The reversal of 1311061324399 is 9934231601131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1311061324399 - 2¹⁹ = 1311060800111 is a prime.

It is a super-3 number, since 3×1311061324399³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311061324099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655530662199 + 655530662200.

It is an arithmetic number, because the mean of its divisors is an integer number (655530662200).

Almost surely, 2^{1311061324399} is an apocalyptic number.

1311061324399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311061324399 is an equidigital number, since it uses as much as digits as its factorization.

1311061324399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 43.

The spelling of 1311061324399 in words is "one trillion, three hundred eleven billion, sixty-one million, three hundred twenty-four thousand, three hundred ninety-nine".