41421105281 has 4 divisors (see below), whose sum is σ = 41601983700. Its totient is φ = 41240226864.

The previous prime is 41421105239. The next prime is 41421105289. The reversal of 41421105281 is 18250112414.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18250112414 = 2 ⋅9125056207.

It can be written as a sum of positive squares in 2 ways, for example, as 33246052225 + 8175053056 = 182335^2 + 90416^2 .

It is a cyclic number.

It is not a de Polignac number, because 41421105281 - 2¹⁸ = 41420843137 is a prime.

It is a super-2 number, since 2×41421105281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41421105289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90438866 + ... + 90439323.

It is an arithmetic number, because the mean of its divisors is an integer number (10400495925).

Almost surely, 2^41421105281 is an apocalyptic number.

It is an amenable number.

41421105281 is a deficient number, since it is larger than the sum of its proper divisors (180878419).

41421105281 is a wasteful number, since it uses less digits than its factorization.

41421105281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180878418.

The product of its (nonzero) digits is 2560, while the sum is 29.

Adding to 41421105281 its reverse (18250112414), we get a palindrome (59671217695).

The spelling of 41421105281 in words is "forty-one billion, four hundred twenty-one million, one hundred five thousand, two hundred eighty-one".