243120132223 has 4 divisors (see below), whose sum is σ = 243126145080. Its totient is φ = 243114119368.

The previous prime is 243120132181. The next prime is 243120132239. The reversal of 243120132223 is 322231021342.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322231021342 = 2 ⋅161115510671.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243120132223 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 (243120132263) 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, 2945365 + ... + 3026782.

It is an arithmetic number, because the mean of its divisors is an integer number (60781536270).

Almost surely, 2^243120132223 is an apocalyptic number.

243120132223 is a deficient number, since it is larger than the sum of its proper divisors (6012857).

243120132223 is an equidigital number, since it uses as much as digits as its factorization.

243120132223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6012856.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 243120132223 its reverse (322231021342), we get a palindrome (565351153565).

The spelling of 243120132223 in words is "two hundred forty-three billion, one hundred twenty million, one hundred thirty-two thousand, two hundred twenty-three".