312442422222389 has 2 divisors, whose sum is σ = 312442422222390. Its totient is φ = 312442422222388.

The previous prime is 312442422222349. The next prime is 312442422222431. The reversal of 312442422222389 is 983222224244213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288167260740100 + 24275161482289 = 16975490^2 + 4926983^2 .

It is an emirp because it is prime and its reverse (983222224244213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312442422222389 - 2¹⁶ = 312442422156853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312442422222349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156221211111194 + 156221211111195.

It is an arithmetic number, because the mean of its divisors is an integer number (156221211111195).

Almost surely, 2^{312442422222389} is an apocalyptic number.

It is an amenable number.

312442422222389 is a deficient number, since it is larger than the sum of its proper divisors (1).

312442422222389 is an equidigital number, since it uses as much as digits as its factorization.

312442422222389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5308416, while the sum is 50.

The spelling of 312442422222389 in words is "three hundred twelve trillion, four hundred forty-two billion, four hundred twenty-two million, two hundred twenty-two thousand, three hundred eighty-nine".