243023331323 has 4 divisors (see below), whose sum is σ = 245252903280. Its totient is φ = 240793759368.

The previous prime is 243023331307. The next prime is 243023331337. The reversal of 243023331323 is 323133320342.

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 243023331323 - 2⁴ = 243023331307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243023351323) 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, 1114785815 + ... + 1114786032.

It is an arithmetic number, because the mean of its divisors is an integer number (61313225820).

Almost surely, 2^243023331323 is an apocalyptic number.

243023331323 is a deficient number, since it is larger than the sum of its proper divisors (2229571957).

243023331323 is a wasteful number, since it uses less digits than its factorization.

243023331323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229571956.

The product of its (nonzero) digits is 23328, while the sum is 29.

Adding to 243023331323 its reverse (323133320342), we get a palindrome (566156651665).

The spelling of 243023331323 in words is "two hundred forty-three billion, twenty-three million, three hundred thirty-one thousand, three hundred twenty-three".