41244021281 has 2 divisors, whose sum is σ = 41244021282. Its totient is φ = 41244021280.

The previous prime is 41244021263. The next prime is 41244021359. The reversal of 41244021281 is 18212044214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30990433681 + 10253587600 = 176041^2 + 101260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41244021281 is a prime.

It is a super-2 number, since 2×41244021281² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (41244021781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20622010640 + 20622010641.

It is an arithmetic number, because the mean of its divisors is an integer number (20622010641).

Almost surely, 2^41244021281 is an apocalyptic number.

It is an amenable number.

41244021281 is a deficient number, since it is larger than the sum of its proper divisors (1).

41244021281 is an equidigital number, since it uses as much as digits as its factorization.

41244021281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4096, while the sum is 29.

Adding to 41244021281 its reverse (18212044214), we get a palindrome (59456065495).

The spelling of 41244021281 in words is "forty-one billion, two hundred forty-four million, twenty-one thousand, two hundred eighty-one".