243434122303 has 4 divisors (see below), whose sum is σ = 247067467480. Its totient is φ = 239800777128.

The previous prime is 243434122271. The next prime is 243434122361. The reversal of 243434122303 is 303221434342.

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 243434122303 - 2⁵ = 243434122271 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 (243434122363) 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, 1816672488 + ... + 1816672621.

It is an arithmetic number, because the mean of its divisors is an integer number (61766866870).

Almost surely, 2^243434122303 is an apocalyptic number.

243434122303 is a deficient number, since it is larger than the sum of its proper divisors (3633345177).

243434122303 is an equidigital number, since it uses as much as digits as its factorization.

243434122303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633345176.

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

Adding to 243434122303 its reverse (303221434342), we get a palindrome (546655556645).

The spelling of 243434122303 in words is "two hundred forty-three billion, four hundred thirty-four million, one hundred twenty-two thousand, three hundred three".