1310320101313 has 4 divisors (see below), whose sum is σ = 1310632012228. Its totient is φ = 1310008190400.

The previous prime is 1310320101269. The next prime is 1310320101329. The reversal of 1310320101313 is 3131010230131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 276820142769 + 1033499958544 = 526137^2 + 1016612^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310320101313 - 2³³ = 1301730166721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310320101353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155949156 + ... + 155957557.

It is an arithmetic number, because the mean of its divisors is an integer number (327658003057).

Almost surely, 2^{1310320101313} is an apocalyptic number.

It is an amenable number.

1310320101313 is a deficient number, since it is larger than the sum of its proper divisors (311910915).

1310320101313 is an equidigital number, since it uses as much as digits as its factorization.

1310320101313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311910914.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 1310320101313 its reverse (3131010230131), we get a palindrome (4441330331444).

The spelling of 1310320101313 in words is "one trillion, three hundred ten billion, three hundred twenty million, one hundred one thousand, three hundred thirteen".