1310443240313 has 16 divisors (see below), whose sum is σ = 1390891980816. Its totient is φ = 1230371788800.

The previous prime is 1310443240307. The next prime is 1310443240343. The reversal of 1310443240313 is 3130423440131.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 121176064 + 1310322064249 = 11008^2 + 1144693^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310443240313 - 2²⁴ = 1310426463097 is a prime.

It is a super-2 number, since 2×1310443240313² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310443240343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12017645 + ... + 12126197.

It is an arithmetic number, because the mean of its divisors is an integer number (86930748801).

Almost surely, 2^{1310443240313} is an apocalyptic number.

It is an amenable number.

1310443240313 is a deficient number, since it is larger than the sum of its proper divisors (80448740503).

1310443240313 is a wasteful number, since it uses less digits than its factorization.

1310443240313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110284.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 1310443240313 its reverse (3130423440131), we get a palindrome (4440866680444).

The spelling of 1310443240313 in words is "one trillion, three hundred ten billion, four hundred forty-three million, two hundred forty thousand, three hundred thirteen".