43544421241 has 2 divisors, whose sum is σ = 43544421242. Its totient is φ = 43544421240.

The previous prime is 43544421229. The next prime is 43544421251. The reversal of 43544421241 is 14212444534.

43544421241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34084913641 + 9459507600 = 184621^2 + 97260^2 .

It is a cyclic number.

It is not a de Polignac number, because 43544421241 - 2⁹ = 43544420729 is a prime.

It is a super-2 number, since 2×43544421241² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43544421197 and 43544421206.

It is not a weakly prime, because it can be changed into another prime (43544421211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21772210620 + 21772210621.

It is an arithmetic number, because the mean of its divisors is an integer number (21772210621).

Almost surely, 2^43544421241 is an apocalyptic number.

It is an amenable number.

43544421241 is a deficient number, since it is larger than the sum of its proper divisors (1).

43544421241 is an equidigital number, since it uses as much as digits as its factorization.

43544421241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61440, while the sum is 34.

Adding to 43544421241 its reverse (14212444534), we get a palindrome (57756865775).

The spelling of 43544421241 in words is "forty-three billion, five hundred forty-four million, four hundred twenty-one thousand, two hundred forty-one".