43041121 has 2 divisors, whose sum is σ = 43041122. Its totient is φ = 43041120.

The previous prime is 43041083. The next prime is 43041169. The reversal of 43041121 is 12114034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35533521 + 7507600 = 5961^2 + 2740^2 .

It is a cyclic number.

It is not a de Polignac number, because 43041121 - 2⁷ = 43040993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43041095 and 43041104.

It is not a weakly prime, because it can be changed into another prime (43041181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21520560 + 21520561.

It is an arithmetic number, because the mean of its divisors is an integer number (21520561).

Almost surely, 2^43041121 is an apocalyptic number.

It is an amenable number.

43041121 is a deficient number, since it is larger than the sum of its proper divisors (1).

43041121 is an equidigital number, since it uses as much as digits as its factorization.

43041121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 43041121 is about 6560.5732219068. The cubic root of 43041121 is about 350.4514473824.

Adding to 43041121 its reverse (12114034), we get a palindrome (55155155).

The spelling of 43041121 in words is "forty-three million, forty-one thousand, one hundred twenty-one".