243143434104 has 128 divisors (see below), whose sum is σ = 633010636800. Its totient is φ = 77742213120.

The previous prime is 243143434091. The next prime is 243143434129. The reversal of 243143434104 is 401434341342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87554764 + ... + 87557540.

It is an arithmetic number, because the mean of its divisors is an integer number (4945395600).

Almost surely, 2^243143434104 is an apocalyptic number.

243143434104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243143434104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316505318400).

243143434104 is an abundant number, since it is smaller than the sum of its proper divisors (389867202696).

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

243143434104 is a wasteful number, since it uses less digits than its factorization.

243143434104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3813 (or 3809 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 243143434104 its reverse (401434341342), we get a palindrome (644577775446).

The spelling of 243143434104 in words is "two hundred forty-three billion, one hundred forty-three million, four hundred thirty-four thousand, one hundred four".