342311287 has 2 divisors, whose sum is σ = 342311288. Its totient is φ = 342311286.

The previous prime is 342311279. The next prime is 342311327. The reversal of 342311287 is 782113243.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 342311287 - 2³ = 342311279 is a prime.

It is a super-3 number, since 3×342311287³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342311237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171155643 + 171155644.

It is an arithmetic number, because the mean of its divisors is an integer number (171155644).

Almost surely, 2^342311287 is an apocalyptic number.

342311287 is a deficient number, since it is larger than the sum of its proper divisors (1).

342311287 is an equidigital number, since it uses as much as digits as its factorization.

342311287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 342311287 is about 18501.6563312586. The cubic root of 342311287 is about 699.5311738281.

The spelling of 342311287 in words is "three hundred forty-two million, three hundred eleven thousand, two hundred eighty-seven".