243120443233 has 16 divisors (see below), whose sum is σ = 251478446080. Its totient is φ = 234795153600.

The previous prime is 243120443149. The next prime is 243120443281. The reversal of 243120443233 is 332344021342.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 243120443233 - 2²⁹ = 242583572321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243120443195 and 243120443204.

It is not an unprimeable number, because it can be changed into a prime (243120443833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41979568 + ... + 41985358.

It is an arithmetic number, because the mean of its divisors is an integer number (15717402880).

Almost surely, 2^243120443233 is an apocalyptic number.

It is an amenable number.

243120443233 is a deficient number, since it is larger than the sum of its proper divisors (8358002847).

243120443233 is a wasteful number, since it uses less digits than its factorization.

243120443233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8368.

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

Adding to 243120443233 its reverse (332344021342), we get a palindrome (575464464575).

The spelling of 243120443233 in words is "two hundred forty-three billion, one hundred twenty million, four hundred forty-three thousand, two hundred thirty-three".