313132161231313 has 4 divisors (see below), whose sum is σ = 313287407718820. Its totient is φ = 312976914743808.

The previous prime is 313132161231293. The next prime is 313132161231353.

313132161231313 is nontrivially palindromic in base 10.

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 183584695731649 + 129547465499664 = 13549343^2 + 11381892^2 .

It is a cyclic number.

It is not a de Polignac number, because 313132161231313 - 2²⁵ = 313132127676881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313132161231353) 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, 77623240728 + ... + 77623244761.

It is an arithmetic number, because the mean of its divisors is an integer number (78321851929705).

Almost surely, 2^{313132161231313} is an apocalyptic number.

It is an amenable number.

313132161231313 is a deficient number, since it is larger than the sum of its proper divisors (155246487507).

313132161231313 is a wasteful number, since it uses less digits than its factorization.

313132161231313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155246487506.

The product of its digits is 17496, while the sum is 34.

The spelling of 313132161231313 in words is "three hundred thirteen trillion, one hundred thirty-two billion, one hundred sixty-one million, two hundred thirty-one thousand, three hundred thirteen".