243234301243 has 4 divisors (see below), whose sum is σ = 243314079400. Its totient is φ = 243154523088.

The previous prime is 243234301231. The next prime is 243234301351. The reversal of 243234301243 is 342103432342.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243234301243 - 2³⁷ = 105795347771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243234301043) 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, 39884505 + ... + 39890602.

It is an arithmetic number, because the mean of its divisors is an integer number (60828519850).

Almost surely, 2^243234301243 is an apocalyptic number.

243234301243 is a deficient number, since it is larger than the sum of its proper divisors (79778157).

243234301243 is an equidigital number, since it uses as much as digits as its factorization.

243234301243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79778156.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 243234301243 its reverse (342103432342), we get a palindrome (585337733585).

The spelling of 243234301243 in words is "two hundred forty-three billion, two hundred thirty-four million, three hundred one thousand, two hundred forty-three".