43243065104321 has 8 divisors (see below), whose sum is σ = 43361590203624. Its totient is φ = 43124647029120.

The previous prime is 43243065104293. The next prime is 43243065104387. The reversal of 43243065104321 is 12340156034234.

43243065104321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5952941218225 + 37290123886096 = 2439865^2 + 6106564^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43243065104321 is a prime.

It is a super-2 number, since 2×43243065104321² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43243065101321) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 25946786 + ... + 27563051.

It is an arithmetic number, because the mean of its divisors is an integer number (5420198775453).

Almost surely, 2^{43243065104321} is an apocalyptic number.

It is an amenable number.

43243065104321 is a deficient number, since it is larger than the sum of its proper divisors (118525099303).

43243065104321 is a wasteful number, since it uses less digits than its factorization.

43243065104321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53512051.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 43243065104321 in words is "forty-three trillion, two hundred forty-three billion, sixty-five million, one hundred four thousand, three hundred twenty-one".