243123504532 has 12 divisors (see below), whose sum is σ = 425481804160. Its totient is φ = 121557274776.

The previous prime is 243123504497. The next prime is 243123504539. The reversal of 243123504532 is 235405321342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243123504539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995682 + ... + 1215577.

Almost surely, 2^243123504532 is an apocalyptic number.

It is an amenable number.

243123504532 is a deficient number, since it is larger than the sum of its proper divisors (182358299628).

243123504532 is a wasteful number, since it uses less digits than its factorization.

243123504532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238750 (or 2238748 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 243123504532 its reverse (235405321342), we get a palindrome (478528825874).

The spelling of 243123504532 in words is "two hundred forty-three billion, one hundred twenty-three million, five hundred four thousand, five hundred thirty-two".