41236665121 has 4 divisors (see below), whose sum is σ = 41340536212. Its totient is φ = 41132794032.

The previous prime is 41236665103. The next prime is 41236665133. The reversal of 41236665121 is 12156663214.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27882320400 + 13354344721 = 166980^2 + 115561^2 .

It is a cyclic number.

It is not a de Polignac number, because 41236665121 - 2⁷ = 41236664993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41236665191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51934950 + ... + 51935743.

It is an arithmetic number, because the mean of its divisors is an integer number (10335134053).

Almost surely, 2^41236665121 is an apocalyptic number.

It is an amenable number.

41236665121 is a deficient number, since it is larger than the sum of its proper divisors (103871091).

41236665121 is a wasteful number, since it uses less digits than its factorization.

41236665121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103871090.

The product of its digits is 51840, while the sum is 37.

The spelling of 41236665121 in words is "forty-one billion, two hundred thirty-six million, six hundred sixty-five thousand, one hundred twenty-one".