312042343 has 2 divisors, whose sum is σ = 312042344. Its totient is φ = 312042342.

The previous prime is 312042317. The next prime is 312042457. The reversal of 312042343 is 343240213.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312042343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312042043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156021171 + 156021172.

It is an arithmetic number, because the mean of its divisors is an integer number (156021172).

Almost surely, 2^312042343 is an apocalyptic number.

312042343 is a deficient number, since it is larger than the sum of its proper divisors (1).

312042343 is an equidigital number, since it uses as much as digits as its factorization.

312042343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 312042343 is about 17664.7202921529. The cubic root of 312042343 is about 678.2729697077.

Adding to 312042343 its reverse (343240213), we get a palindrome (655282556).

The spelling of 312042343 in words is "three hundred twelve million, forty-two thousand, three hundred forty-three".