313343213 has 4 divisors (see below), whose sum is σ = 315265728. Its totient is φ = 311420700.

The previous prime is 313343209. The next prime is 313343243. The reversal of 313343213 is 312343313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312343313 = 1583 ⋅197311.

It is a cyclic number.

It is not a de Polignac number, because 313343213 - 2² = 313343209 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 (313343243) 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, 961013 + ... + 961338.

It is an arithmetic number, because the mean of its divisors is an integer number (78816432).

Almost surely, 2^313343213 is an apocalyptic number.

It is an amenable number.

313343213 is a deficient number, since it is larger than the sum of its proper divisors (1922515).

313343213 is a wasteful number, since it uses less digits than its factorization.

313343213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922514.

The product of its digits is 1944, while the sum is 23.

The square root of 313343213 is about 17701.5031282657. The cubic root of 313343213 is about 679.2142112592.

Adding to 313343213 its reverse (312343313), we get a palindrome (625686526).

The spelling of 313343213 in words is "three hundred thirteen million, three hundred forty-three thousand, two hundred thirteen".