312434243 has 4 divisors (see below), whose sum is σ = 340837368. Its totient is φ = 284031120.

The previous prime is 312434237. The next prime is 312434261. The reversal of 312434243 is 342434213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 312434243 - 2⁸ = 312433987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312434273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14201546 + ... + 14201567.

It is an arithmetic number, because the mean of its divisors is an integer number (85209342).

Almost surely, 2^312434243 is an apocalyptic number.

312434243 is a deficient number, since it is larger than the sum of its proper divisors (28403125).

312434243 is a wasteful number, since it uses less digits than its factorization.

312434243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28403124.

The product of its digits is 6912, while the sum is 26.

The square root of 312434243 is about 17675.8095429884. The cubic root of 312434243 is about 678.5568029540.

Adding to 312434243 its reverse (342434213), we get a palindrome (654868456).

The spelling of 312434243 in words is "three hundred twelve million, four hundred thirty-four thousand, two hundred forty-three".