312212322438223 has 2 divisors, whose sum is σ = 312212322438224. Its totient is φ = 312212322438222.

The previous prime is 312212322438151. The next prime is 312212322438227. The reversal of 312212322438223 is 322834223212213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312212322438223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312212322438227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156106161219111 + 156106161219112.

It is an arithmetic number, because the mean of its divisors is an integer number (156106161219112).

Almost surely, 2^{312212322438223} is an apocalyptic number.

312212322438223 is a deficient number, since it is larger than the sum of its proper divisors (1).

312212322438223 is an equidigital number, since it uses as much as digits as its factorization.

312212322438223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 40.

The spelling of 312212322438223 in words is "three hundred twelve trillion, two hundred twelve billion, three hundred twenty-two million, four hundred thirty-eight thousand, two hundred twenty-three".