342321913 has 2 divisors, whose sum is σ = 342321914. Its totient is φ = 342321912.

The previous prime is 342321907. The next prime is 342322007. The reversal of 342321913 is 319123243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339038569 + 3283344 = 18413^2 + 1812^2 .

It is an emirp because it is prime and its reverse (319123243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342321913 - 2¹³ = 342313721 is a prime.

It is not a weakly prime, because it can be changed into another prime (342301913) 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 as a sum of consecutive naturals, namely, 171160956 + 171160957.

It is an arithmetic number, because the mean of its divisors is an integer number (171160957).

Almost surely, 2^342321913 is an apocalyptic number.

It is an amenable number.

342321913 is a deficient number, since it is larger than the sum of its proper divisors (1).

342321913 is an equidigital number, since it uses as much as digits as its factorization.

342321913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 28.

The square root of 342321913 is about 18501.9434925091. The cubic root of 342321913 is about 699.5384120171.

The spelling of 342321913 in words is "three hundred forty-two million, three hundred twenty-one thousand, nine hundred thirteen".