243110234140 has 72 divisors (see below), whose sum is σ = 541006190928. Its totient is φ = 91741605120.

The previous prime is 243110234123. The next prime is 243110234183. The reversal of 243110234140 is 41432011342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 614955 + ... + 929725.

It is an arithmetic number, because the mean of its divisors is an integer number (7513974874).

Almost surely, 2^243110234140 is an apocalyptic number.

243110234140 is a gapful number since it is divisible by the number (20) 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 243110234140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270503095464).

243110234140 is an abundant number, since it is smaller than the sum of its proper divisors (297895956788).

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

243110234140 is a wasteful number, since it uses less digits than its factorization.

243110234140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314899 (or 314874 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 243110234140 its reverse (41432011342), we get a palindrome (284542245482).

The spelling of 243110234140 in words is "two hundred forty-three billion, one hundred ten million, two hundred thirty-four thousand, one hundred forty".