312133303243 has 2 divisors, whose sum is σ = 312133303244. Its totient is φ = 312133303242.

The previous prime is 312133303199. The next prime is 312133303291. The reversal of 312133303243 is 342303331213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312133303243 - 2¹⁷ = 312133172171 is a prime.

It is not a weakly prime, because it can be changed into another prime (312139303243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156066651621 + 156066651622.

It is an arithmetic number, because the mean of its divisors is an integer number (156066651622).

Almost surely, 2^312133303243 is an apocalyptic number.

312133303243 is a deficient number, since it is larger than the sum of its proper divisors (1).

312133303243 is an equidigital number, since it uses as much as digits as its factorization.

312133303243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 312133303243 its reverse (342303331213), we get a palindrome (654436634456).

The spelling of 312133303243 in words is "three hundred twelve billion, one hundred thirty-three million, three hundred three thousand, two hundred forty-three".