42243140041 has 2 divisors, whose sum is σ = 42243140042. Its totient is φ = 42243140040.

The previous prime is 42243140039. The next prime is 42243140053. The reversal of 42243140041 is 14004134224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37838030400 + 4405109641 = 194520^2 + 66371^2 .

It is a cyclic number.

It is not a de Polignac number, because 42243140041 - 2¹ = 42243140039 is a prime.

Together with 42243140039, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 42243139988 and 42243140015.

It is not a weakly prime, because it can be changed into another prime (42243140441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21121570020 + 21121570021.

It is an arithmetic number, because the mean of its divisors is an integer number (21121570021).

Almost surely, 2^42243140041 is an apocalyptic number.

It is an amenable number.

42243140041 is a deficient number, since it is larger than the sum of its proper divisors (1).

42243140041 is an equidigital number, since it uses as much as digits as its factorization.

42243140041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 42243140041 its reverse (14004134224), we get a palindrome (56247274265).

The spelling of 42243140041 in words is "forty-two billion, two hundred forty-three million, one hundred forty thousand, forty-one".