340442230243 has 4 divisors (see below), whose sum is σ = 342480806640. Its totient is φ = 338403653848.

The previous prime is 340442230171. The next prime is 340442230253. The reversal of 340442230243 is 342032244043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342032244043 = 7 ⋅48861749149.

It is a cyclic number.

It is not a de Polignac number, because 340442230243 - 2⁹ = 340442229731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340442230253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1019287948 + ... + 1019288281.

It is an arithmetic number, because the mean of its divisors is an integer number (85620201660).

Almost surely, 2^340442230243 is an apocalyptic number.

340442230243 is a deficient number, since it is larger than the sum of its proper divisors (2038576397).

340442230243 is a wasteful number, since it uses less digits than its factorization.

340442230243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038576396.

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 340442230243 its reverse (342032244043), we get a palindrome (682474474286).

The spelling of 340442230243 in words is "three hundred forty billion, four hundred forty-two million, two hundred thirty thousand, two hundred forty-three".