1313311032113 has 4 divisors (see below), whose sum is σ = 1345343008548. Its totient is φ = 1281279055680.

The previous prime is 1313311032107. The next prime is 1313311032167. The reversal of 1313311032113 is 3112301133131.

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 161063360929 + 1152247671184 = 401327^2 + 1073428^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313311032113 - 2²⁰ = 1313309983537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313311022113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16015988156 + ... + 16015988237.

It is an arithmetic number, because the mean of its divisors is an integer number (336335752137).

Almost surely, 2^{1313311032113} is an apocalyptic number.

It is an amenable number.

1313311032113 is a deficient number, since it is larger than the sum of its proper divisors (32031976435).

1313311032113 is an equidigital number, since it uses as much as digits as its factorization.

1313311032113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32031976434.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 1313311032113 its reverse (3112301133131), we get a palindrome (4425612165244).

The spelling of 1313311032113 in words is "one trillion, three hundred thirteen billion, three hundred eleven million, thirty-two thousand, one hundred thirteen".