312404131102313 has 4 divisors (see below), whose sum is σ = 312404176989828. Its totient is φ = 312404085214800.

The previous prime is 312404131102243. The next prime is 312404131102363. The reversal of 312404131102313 is 313201131404213.

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 192271724299264 + 120132406803049 = 13866208^2 + 10960493^2 .

It is a cyclic number.

It is not a de Polignac number, because 312404131102313 - 2¹⁴ = 312404131085929 is a prime.

It is a super-2 number, since 2×312404131102313² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312404131102363) 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, 10471838 + ... + 27101063.

It is an arithmetic number, because the mean of its divisors is an integer number (78101044247457).

Almost surely, 2^{312404131102313} is an apocalyptic number.

It is an amenable number.

312404131102313 is a deficient number, since it is larger than the sum of its proper divisors (45887515).

312404131102313 is an equidigital number, since it uses as much as digits as its factorization.

312404131102313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45887514.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 312404131102313 its reverse (313201131404213), we get a palindrome (625605262506526).

The spelling of 312404131102313 in words is "three hundred twelve trillion, four hundred four billion, one hundred thirty-one million, one hundred two thousand, three hundred thirteen".