312343111 has 4 divisors (see below), whose sum is σ = 312396592. Its totient is φ = 312289632.

The previous prime is 312343103. The next prime is 312343121. The reversal of 312343111 is 111343213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111343213 = 67 ⋅1661839.

It is a cyclic number.

It is not a de Polignac number, because 312343111 - 2³ = 312343103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312343121) 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 in 3 ways as a sum of consecutive naturals, for example, 16731 + ... + 30076.

It is an arithmetic number, because the mean of its divisors is an integer number (78099148).

Almost surely, 2^312343111 is an apocalyptic number.

312343111 is a deficient number, since it is larger than the sum of its proper divisors (53481).

312343111 is an equidigital number, since it uses as much as digits as its factorization.

312343111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53480.

The product of its digits is 216, while the sum is 19.

The square root of 312343111 is about 17673.2314815373. The cubic root of 312343111 is about 678.4908218680.

Adding to 312343111 its reverse (111343213), we get a palindrome (423686324).

The spelling of 312343111 in words is "three hundred twelve million, three hundred forty-three thousand, one hundred eleven".