243131132424 has 32 divisors (see below), whose sum is σ = 616899892320. Its totient is φ = 79834102656.

The previous prime is 243131132381. The next prime is 243131132441. The reversal of 243131132424 is 424231131342.

243131132424 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 2×243131132424² (a number of 24 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 243131132391 and 243131132400.

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 7 ways as a sum of consecutive naturals, for example, 75598869 + ... + 75602084.

It is an arithmetic number, because the mean of its divisors is an integer number (19278121635).

Almost surely, 2^243131132424 is an apocalyptic number.

243131132424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243131132424 is an abundant number, since it is smaller than the sum of its proper divisors (373768759896).

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

243131132424 is a wasteful number, since it uses less digits than its factorization.

243131132424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151201029 (or 151201025 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

Adding to 243131132424 its reverse (424231131342), we get a palindrome (667362263766).

The spelling of 243131132424 in words is "two hundred forty-three billion, one hundred thirty-one million, one hundred thirty-two thousand, four hundred twenty-four".