243131104232 has 8 divisors (see below), whose sum is σ = 455870820450. Its totient is φ = 121565552112.

The previous prime is 243131104231. The next prime is 243131104243. The reversal of 243131104232 is 232401131342.

It can be written as a sum of positive squares in only one way, i.e., 243114080356 + 17023876 = 493066^2 + 4126^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×243131104232² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243131104231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15195694007 + ... + 15195694022.

Almost surely, 2^243131104232 is an apocalyptic number.

It is an amenable number.

243131104232 is a deficient number, since it is larger than the sum of its proper divisors (212739716218).

243131104232 is a wasteful number, since it uses less digits than its factorization.

243131104232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30391388035 (or 30391388031 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 243131104232 its reverse (232401131342), we get a palindrome (475532235574).

The spelling of 243131104232 in words is "two hundred forty-three billion, one hundred thirty-one million, one hundred four thousand, two hundred thirty-two".