312133224302243 has 4 divisors (see below), whose sum is σ = 312155910065280. Its totient is φ = 312110538539208.

The previous prime is 312133224302203. The next prime is 312133224302257. The reversal of 312133224302243 is 342203422331213.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312133224302243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312133224302203) 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, 11342860880 + ... + 11342888397.

It is an arithmetic number, because the mean of its divisors is an integer number (78038977516320).

Almost surely, 2^{312133224302243} is an apocalyptic number.

312133224302243 is a deficient number, since it is larger than the sum of its proper divisors (22685763037).

312133224302243 is a wasteful number, since it uses less digits than its factorization.

312133224302243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22685763036.

The product of its (nonzero) digits is 124416, while the sum is 35.

Adding to 312133224302243 its reverse (342203422331213), we get a palindrome (654336646633456).

The spelling of 312133224302243 in words is "three hundred twelve trillion, one hundred thirty-three billion, two hundred twenty-four million, three hundred two thousand, two hundred forty-three".