43043323340121 has 16 divisors (see below), whose sum is σ = 61806012206400. Its totient is φ = 26488107011520.

The previous prime is 43043323340113. The next prime is 43043323340123. The reversal of 43043323340121 is 12104332334034.

It is a happy number.

It is not a de Polignac number, because 43043323340121 - 2³ = 43043323340113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43043323340123) 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, 10475131 + ... + 13993391.

It is an arithmetic number, because the mean of its divisors is an integer number (3862875762900).

Almost surely, 2^{43043323340121} is an apocalyptic number.

It is an amenable number.

43043323340121 is a deficient number, since it is larger than the sum of its proper divisors (18762688866279).

43043323340121 is a wasteful number, since it uses less digits than its factorization.

43043323340121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831976.

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 43043323340121 its reverse (12104332334034), we get a palindrome (55147655674155).

The spelling of 43043323340121 in words is "forty-three trillion, forty-three billion, three hundred twenty-three million, three hundred forty thousand, one hundred twenty-one".