43130221540 has 48 divisors (see below), whose sum is σ = 108960566400. Its totient is φ = 14009213952.

The previous prime is 43130221499. The next prime is 43130221571. The reversal of 43130221540 is 4512203134.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8104525 + ... + 8109844.

It is an arithmetic number, because the mean of its divisors is an integer number (2270011800).

Almost surely, 2^43130221540 is an apocalyptic number.

It is an amenable number.

43130221540 is an abundant number, since it is smaller than the sum of its proper divisors (65830344860).

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

43130221540 is a wasteful number, since it uses less digits than its factorization.

43130221540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16214404 (or 16214402 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 43130221540 its reverse (4512203134), we get a palindrome (47642424674).

The spelling of 43130221540 in words is "forty-three billion, one hundred thirty million, two hundred twenty-one thousand, five hundred forty".