43431212044220 has 288 divisors, whose sum is σ = 128484163906560. Its totient is φ = 11952400711680.

The previous prime is 43431212044153. The next prime is 43431212044277. The reversal of 43431212044220 is 2244021213434.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2358236 + ... + 9613724.

It is an arithmetic number, because the mean of its divisors is an integer number (446125569120).

Almost surely, 2^{43431212044220} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43431212044220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64242081953280).

43431212044220 is an abundant number, since it is smaller than the sum of its proper divisors (85052951862340).

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

43431212044220 is a wasteful number, since it uses less digits than its factorization.

43431212044220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7255565 (or 7255550 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 43431212044220 its reverse (2244021213434), we get a palindrome (45675233257654).

The spelling of 43431212044220 in words is "forty-three trillion, four hundred thirty-one billion, two hundred twelve million, forty-four thousand, two hundred twenty".