312230303032243 has 2 divisors, whose sum is σ = 312230303032244. Its totient is φ = 312230303032242.

The previous prime is 312230303032163. The next prime is 312230303032247. The reversal of 312230303032243 is 342230303032213.

It is a strong prime.

It is an emirp because it is prime and its reverse (342230303032213) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312230303032243 is a prime.

It is a super-2 number, since 2×312230303032243² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (312230303032247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156115151516121 + 156115151516122.

It is an arithmetic number, because the mean of its divisors is an integer number (156115151516122).

Almost surely, 2^{312230303032243} is an apocalyptic number.

312230303032243 is a deficient number, since it is larger than the sum of its proper divisors (1).

312230303032243 is an equidigital number, since it uses as much as digits as its factorization.

312230303032243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 31.

Adding to 312230303032243 its reverse (342230303032213), we get a palindrome (654460606064456).

The spelling of 312230303032243 in words is "three hundred twelve trillion, two hundred thirty billion, three hundred three million, thirty-two thousand, two hundred forty-three".