13112302231313 has 4 divisors (see below), whose sum is σ = 13112322684900. Its totient is φ = 13112281777728.

The previous prime is 13112302231247. The next prime is 13112302231319. The reversal of 13112302231313 is 31313220321131.

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 5650756545424 + 7461545685889 = 2377132^2 + 2731583^2 .

It is a cyclic number.

It is not a de Polignac number, because 13112302231313 - 2⁸ = 13112302231057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13112302231319) 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, 9232988 + ... + 10558061.

It is an arithmetic number, because the mean of its divisors is an integer number (3278080671225).

Almost surely, 2^{13112302231313} is an apocalyptic number.

It is an amenable number.

13112302231313 is a deficient number, since it is larger than the sum of its proper divisors (20453587).

13112302231313 is an equidigital number, since it uses as much as digits as its factorization.

13112302231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20453586.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 13112302231313 its reverse (31313220321131), we get a palindrome (44425522552444).

The spelling of 13112302231313 in words is "thirteen trillion, one hundred twelve billion, three hundred two million, two hundred thirty-one thousand, three hundred thirteen".