312424213 has 4 divisors (see below), whose sum is σ = 312711148. Its totient is φ = 312137280.

The previous prime is 312424187. The next prime is 312424237.

312424213 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 287404209 + 25020004 = 16953^2 + 5002^2 .

It is a cyclic number.

It is not a de Polignac number, because 312424213 - 2⁹ = 312423701 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 (312424513) 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, 141828 + ... + 144013.

It is an arithmetic number, because the mean of its divisors is an integer number (78177787).

Almost surely, 2^312424213 is an apocalyptic number.

It is an amenable number.

312424213 is a deficient number, since it is larger than the sum of its proper divisors (286935).

312424213 is a wasteful number, since it uses less digits than its factorization.

312424213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286934.

The product of its digits is 1152, while the sum is 22.

The square root of 312424213 is about 17675.5258196185. The cubic root of 312424213 is about 678.5495416953.

The spelling of 312424213 in words is "three hundred twelve million, four hundred twenty-four thousand, two hundred thirteen".