312271343 has 2 divisors, whose sum is σ = 312271344. Its totient is φ = 312271342.

The previous prime is 312271321. The next prime is 312271357. The reversal of 312271343 is 343172213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312271343 - 2¹⁶ = 312205807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312271313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156135671 + 156135672.

It is an arithmetic number, because the mean of its divisors is an integer number (156135672).

Almost surely, 2^312271343 is an apocalyptic number.

312271343 is a deficient number, since it is larger than the sum of its proper divisors (1).

312271343 is an equidigital number, since it uses as much as digits as its factorization.

312271343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 26.

The square root of 312271343 is about 17671.2009495676. The cubic root of 312271343 is about 678.4388516067.

The spelling of 312271343 in words is "three hundred twelve million, two hundred seventy-one thousand, three hundred forty-three".