342216313 has 2 divisors, whose sum is σ = 342216314. Its totient is φ = 342216312.

The previous prime is 342216289. The next prime is 342216323. The reversal of 342216313 is 313612243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328769424 + 13446889 = 18132^2 + 3667^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342216313 is a prime.

It is a super-2 number, since 2×342216313² = 234224009766627938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (342216323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171108156 + 171108157.

It is an arithmetic number, because the mean of its divisors is an integer number (171108157).

Almost surely, 2^342216313 is an apocalyptic number.

It is an amenable number.

342216313 is a deficient number, since it is larger than the sum of its proper divisors (1).

342216313 is an equidigital number, since it uses as much as digits as its factorization.

342216313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 25.

The square root of 342216313 is about 18499.0895181358. The cubic root of 342216313 is about 699.4664730509.

Adding to 342216313 its reverse (313612243), we get a palindrome (655828556).

The spelling of 342216313 in words is "three hundred forty-two million, two hundred sixteen thousand, three hundred thirteen".