312202241212313 has 4 divisors (see below), whose sum is σ = 312647608176228. Its totient is φ = 311756874248400.

The previous prime is 312202241212261. The next prime is 312202241212363. The reversal of 312202241212313 is 313212142202213.

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 225377918558464 + 86824322653849 = 15012592^2 + 9317957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312202241212313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312202241212363) 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, 222683480906 + ... + 222683482307.

It is an arithmetic number, because the mean of its divisors is an integer number (78161902044057).

Almost surely, 2^{312202241212313} is an apocalyptic number.

It is an amenable number.

312202241212313 is a deficient number, since it is larger than the sum of its proper divisors (445366963915).

312202241212313 is an equidigital number, since it uses as much as digits as its factorization.

312202241212313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445366963914.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 312202241212313 its reverse (313212142202213), we get a palindrome (625414383414526).

The spelling of 312202241212313 in words is "three hundred twelve trillion, two hundred two billion, two hundred forty-one million, two hundred twelve thousand, three hundred thirteen".