243123454104 has 32 divisors (see below), whose sum is σ = 622633238640. Its totient is φ = 79064537600.

The previous prime is 243123454087. The next prime is 243123454129. The reversal of 243123454104 is 401454321342.

It is a congruent number.

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, 123537357 + ... + 123539324.

Almost surely, 2^243123454104 is an apocalyptic number.

243123454104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243123454104 is an abundant number, since it is smaller than the sum of its proper divisors (379509784536).

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

243123454104 is a wasteful number, since it uses less digits than its factorization.

243123454104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247076731 (or 247076727 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 243123454104 its reverse (401454321342), we get a palindrome (644577775446).

The spelling of 243123454104 in words is "two hundred forty-three billion, one hundred twenty-three million, four hundred fifty-four thousand, one hundred four".