243123454532 has 24 divisors (see below), whose sum is σ = 486335513664. Its totient is φ = 104176779552.

The previous prime is 243123454493. The next prime is 243123454589. The reversal of 243123454532 is 235454321342.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634163 + ... + 942554.

It is an arithmetic number, because the mean of its divisors is an integer number (20263979736).

Almost surely, 2^243123454532 is an apocalyptic number.

It is an amenable number.

243123454532 is an abundant number, since it is smaller than the sum of its proper divisors (243212059132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243123454532 is a wasteful number, since it uses less digits than its factorization.

243123454532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582235 (or 1582233 counting only the distinct ones).

The product of its digits is 345600, while the sum is 38.

Adding to 243123454532 its reverse (235454321342), we get a palindrome (478577775874).

The spelling of 243123454532 in words is "two hundred forty-three billion, one hundred twenty-three million, four hundred fifty-four thousand, five hundred thirty-two".