43213320420 has 48 divisors (see below), whose sum is σ = 123811195200. Its totient is φ = 11255561856.

The previous prime is 43213320379. The next prime is 43213320427. The reversal of 43213320420 is 2402331234.

It is not an unprimeable number, because it can be changed into a prime (43213320427) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8372095 + ... + 8377254.

It is an arithmetic number, because the mean of its divisors is an integer number (2579399900).

Almost surely, 2^43213320420 is an apocalyptic number.

It is an amenable number.

43213320420 is an abundant number, since it is smaller than the sum of its proper divisors (80597874780).

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

43213320420 is a wasteful number, since it uses less digits than its factorization.

43213320420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16749404 (or 16749402 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 43213320420 its reverse (2402331234), we get a palindrome (45615651654).

The spelling of 43213320420 in words is "forty-three billion, two hundred thirteen million, three hundred twenty thousand, four hundred twenty".