243234351359 has 4 divisors (see below), whose sum is σ = 245507569704. Its totient is φ = 240961133016.

The previous prime is 243234351343. The next prime is 243234351361. The reversal of 243234351359 is 953153432342.

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: 953153432342 = 2 ⋅476576716171.

It is a cyclic number.

It is not a de Polignac number, because 243234351359 - 2⁴ = 243234351343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243234351329) 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, 1136609012 + ... + 1136609225.

It is an arithmetic number, because the mean of its divisors is an integer number (61376892426).

Almost surely, 2^243234351359 is an apocalyptic number.

243234351359 is a deficient number, since it is larger than the sum of its proper divisors (2273218345).

243234351359 is a wasteful number, since it uses less digits than its factorization.

243234351359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273218344.

The product of its digits is 1166400, while the sum is 44.

The spelling of 243234351359 in words is "two hundred forty-three billion, two hundred thirty-four million, three hundred fifty-one thousand, three hundred fifty-nine".