312202313331243 has 4 divisors (see below), whose sum is σ = 416269751108328. Its totient is φ = 208134875554160.

The previous prime is 312202313331199. The next prime is 312202313331269. The reversal of 312202313331243 is 342133313202213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312202313331243 - 2⁸ = 312202313330987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312202313331343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52033718888538 + ... + 52033718888543.

It is an arithmetic number, because the mean of its divisors is an integer number (104067437777082).

Almost surely, 2^{312202313331243} is an apocalyptic number.

312202313331243 is a deficient number, since it is larger than the sum of its proper divisors (104067437777085).

312202313331243 is a wasteful number, since it uses less digits than its factorization.

312202313331243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104067437777084.

The product of its (nonzero) digits is 46656, while the sum is 33.

Adding to 312202313331243 its reverse (342133313202213), we get a palindrome (654335626533456).

The spelling of 312202313331243 in words is "three hundred twelve trillion, two hundred two billion, three hundred thirteen million, three hundred thirty-one thousand, two hundred forty-three".