342020243 has 2 divisors, whose sum is σ = 342020244. Its totient is φ = 342020242.

The previous prime is 342020221. The next prime is 342020321.

342020243 is nontrivially palindromic in base 10.

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342020243 is a prime.

It is not a weakly prime, because it can be changed into another prime (342020443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171010121 + 171010122.

It is an arithmetic number, because the mean of its divisors is an integer number (171010122).

Almost surely, 2^342020243 is an apocalyptic number.

342020243 is a deficient number, since it is larger than the sum of its proper divisors (1).

342020243 is an equidigital number, since it uses as much as digits as its factorization.

342020243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 342020243 is about 18493.7893088464. The cubic root of 342020243 is about 699.3328630247.

The spelling of 342020243 in words is "three hundred forty-two million, twenty thousand, two hundred forty-three".