331342313 has 4 divisors (see below), whose sum is σ = 342767940. Its totient is φ = 319916688.

The previous prime is 331342259. The next prime is 331342321. The reversal of 331342313 is 313243133.

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 244703449 + 86638864 = 15643^2 + 9308^2 .

It is a cyclic number.

It is not a de Polignac number, because 331342313 - 2²⁰ = 330293737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331342013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5712770 + ... + 5712827.

It is an arithmetic number, because the mean of its divisors is an integer number (85691985).

Almost surely, 2^331342313 is an apocalyptic number.

It is an amenable number.

331342313 is a deficient number, since it is larger than the sum of its proper divisors (11425627).

331342313 is a wasteful number, since it uses less digits than its factorization.

331342313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11425626.

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

The square root of 331342313 is about 18202.8105796880. The cubic root of 331342313 is about 691.9780202013.

Adding to 331342313 its reverse (313243133), we get a palindrome (644585446).

The spelling of 331342313 in words is "three hundred thirty-one million, three hundred forty-two thousand, three hundred thirteen".