342134021309 has 2 divisors, whose sum is σ = 342134021310. Its totient is φ = 342134021308.

The previous prime is 342134021297. The next prime is 342134021357. The reversal of 342134021309 is 903120431243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 287513657209 + 54620364100 = 536203^2 + 233710^2 .

It is an emirp because it is prime and its reverse (903120431243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342134021309 - 2⁴ = 342134021293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342134021399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171067010654 + 171067010655.

It is an arithmetic number, because the mean of its divisors is an integer number (171067010655).

Almost surely, 2^342134021309 is an apocalyptic number.

It is an amenable number.

342134021309 is a deficient number, since it is larger than the sum of its proper divisors (1).

342134021309 is an equidigital number, since it uses as much as digits as its factorization.

342134021309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 342134021309 in words is "three hundred forty-two billion, one hundred thirty-four million, twenty-one thousand, three hundred nine".