43131043320 has 64 divisors (see below), whose sum is σ = 129410399520. Its totient is φ = 11500076544.

The previous prime is 43131043283. The next prime is 43131043321. The reversal of 43131043320 is 2334013134.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43131043321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1095822 + ... + 1134498.

Almost surely, 2^43131043320 is an apocalyptic number.

43131043320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43131043320 is an abundant number, since it is smaller than the sum of its proper divisors (86279356200).

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

43131043320 is a wasteful number, since it uses less digits than its factorization.

43131043320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47984 (or 47980 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 43131043320 its reverse (2334013134), we get a palindrome (45465056454).

The spelling of 43131043320 in words is "forty-three billion, one hundred thirty-one million, forty-three thousand, three hundred twenty".