43240131320340 has 96 divisors (see below), whose sum is σ = 126567348203520. Its totient is φ = 11009203261056.

The previous prime is 43240131320333. The next prime is 43240131320387. The reversal of 43240131320340 is 4302313104234.

It is a happy number.

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 = 43240131320298 and 43240131320307.

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, 27886300 + ... + 29396019.

It is an arithmetic number, because the mean of its divisors is an integer number (1318409877120).

Almost surely, 2^{43240131320340} is an apocalyptic number.

It is an amenable number.

43240131320340 is an abundant number, since it is smaller than the sum of its proper divisors (83327216883180).

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

43240131320340 is a wasteful number, since it uses less digits than its factorization.

43240131320340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57282901 (or 57282899 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 43240131320340 its reverse (4302313104234), we get a palindrome (47542444424574).

The spelling of 43240131320340 in words is "forty-three trillion, two hundred forty billion, one hundred thirty-one million, three hundred twenty thousand, three hundred forty".