243124303140 has 144 divisors (see below), whose sum is σ = 783369874560. Its totient is φ = 62597404800.

The previous prime is 243124303139. The next prime is 243124303157. The reversal of 243124303140 is 41303421342.

243124303140 is a `hidden beast` number, since 2 + 4 + 312 + 4 + 30 + 314 + 0 = 666.

243124303140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×243124303140² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 186465 + ... + 721815.

Almost surely, 2^243124303140 is an apocalyptic number.

243124303140 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 243124303140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (391684937280).

243124303140 is an abundant number, since it is smaller than the sum of its proper divisors (540245571420).

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

243124303140 is a wasteful number, since it uses less digits than its factorization.

243124303140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535427 (or 535390 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 243124303140 its reverse (41303421342), we get a palindrome (284427724482).

The spelling of 243124303140 in words is "two hundred forty-three billion, one hundred twenty-four million, three hundred three thousand, one hundred forty".