43143311431220 has 288 divisors, whose sum is σ = 126794084659200. Its totient is φ = 11984829373440.

The previous prime is 43143311431211. The next prime is 43143311431261. The reversal of 43143311431220 is 2213411334134.

It is a super-2 number, since 2×43143311431220² (a number of 28 digits) contains 22 as substring.

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, 3008621 + ... + 9764139.

It is an arithmetic number, because the mean of its divisors is an integer number (440257238400).

Almost surely, 2^{43143311431220} 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 43143311431220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63397042329600).

43143311431220 is an abundant number, since it is smaller than the sum of its proper divisors (83650773227980).

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

43143311431220 is a wasteful number, since it uses less digits than its factorization.

43143311431220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6755599 (or 6755586 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 43143311431220 its reverse (2213411334134), we get a palindrome (45356722765354).

The spelling of 43143311431220 in words is "forty-three trillion, one hundred forty-three billion, three hundred eleven million, four hundred thirty-one thousand, two hundred twenty".