1311360440633 has 12 divisors (see below), whose sum is σ = 1399179742740. Its totient is φ = 1224799779840.

The previous prime is 1311360440629. The next prime is 1311360440681. The reversal of 1311360440633 is 3360440631131.

It can be written as a sum of positive squares in 2 ways, for example, as 958112084224 + 353248356409 = 978832^2 + 594347^2 .

It is not a de Polignac number, because 1311360440633 - 2² = 1311360440629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1311360440593 and 1311360440602.

It is not an unprimeable number, because it can be changed into a prime (1311360440683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1955768 + ... + 2539241.

It is an arithmetic number, because the mean of its divisors is an integer number (116598311895).

Almost surely, 2^{1311360440633} is an apocalyptic number.

It is an amenable number.

1311360440633 is a deficient number, since it is larger than the sum of its proper divisors (87819302107).

1311360440633 is an equidigital number, since it uses as much as digits as its factorization.

1311360440633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4495288 (or 4495157 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 35.

The spelling of 1311360440633 in words is "one trillion, three hundred eleven billion, three hundred sixty million, four hundred forty thousand, six hundred thirty-three".