1312330312313 has 8 divisors (see below), whose sum is σ = 1317987122760. Its totient is φ = 1306675249920.

The previous prime is 1312330312273. The next prime is 1312330312357. The reversal of 1312330312313 is 3132130332131.

It can be written as a sum of positive squares in 4 ways, for example, as 265418675344 + 1046911636969 = 515188^2 + 1023187^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312330312313 - 2¹² = 1312330308217 is a prime.

It is a super-2 number, since 2×1312330312313² (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 (1312330312213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1079003 + ... + 1946511.

It is an arithmetic number, because the mean of its divisors is an integer number (164748390345).

Almost surely, 2^{1312330312313} is an apocalyptic number.

It is an amenable number.

1312330312313 is a deficient number, since it is larger than the sum of its proper divisors (5656810447).

1312330312313 is an equidigital number, since it uses as much as digits as its factorization.

1312330312313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874027.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 1312330312313 its reverse (3132130332131), we get a palindrome (4444460644444).

The spelling of 1312330312313 in words is "one trillion, three hundred twelve billion, three hundred thirty million, three hundred twelve thousand, three hundred thirteen".