243423124140 has 72 divisors (see below), whose sum is σ = 792863899632. Its totient is φ = 55639570560.

The previous prime is 243423124111. The next prime is 243423124171. The reversal of 243423124140 is 41421324342.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 243423124098 and 243423124107.

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, 41395551 + ... + 41401430.

It is an arithmetic number, because the mean of its divisors is an integer number (11011998606).

Almost surely, 2^243423124140 is an apocalyptic number.

243423124140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243423124140 is an abundant number, since it is smaller than the sum of its proper divisors (549440775492).

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

243423124140 is a wasteful number, since it uses less digits than its factorization.

243423124140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82797007 (or 82796998 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 243423124140 its reverse (41421324342), we get a palindrome (284844448482).

The spelling of 243423124140 in words is "two hundred forty-three billion, four hundred twenty-three million, one hundred twenty-four thousand, one hundred forty".