43520312000000 has 420 divisors, whose sum is σ = 119475280071840. Its totient is φ = 15825216000000.

The previous prime is 43520311999991. The next prime is 43520312000021. The reversal of 43520312000000 is 21302534.

It is a happy number.

43520312000000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 967977521 + ... + 968022479.

It is an arithmetic number, because the mean of its divisors is an integer number (284464952552).

Almost surely, 2^{43520312000000} is an apocalyptic number.

43520312000000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43520312000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59737640035920).

43520312000000 is an abundant number, since it is smaller than the sum of its proper divisors (75954968071840).

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

43520312000000 is an frugal number, since it uses more digits than its factorization.

43520312000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45029 (or 44977 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 43520312000000 its reverse (21302534), we get a palindrome (43520333302534).

The spelling of 43520312000000 in words is "forty-three trillion, five hundred twenty billion, three hundred twelve million", and thus it is an aban number.