41101131991 has 2 divisors, whose sum is σ = 41101131992. Its totient is φ = 41101131990.

The previous prime is 41101131979. The next prime is 41101132013. The reversal of 41101131991 is 19913110114.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 41101131991 - 2¹¹ = 41101129943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41101131901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20550565995 + 20550565996.

It is an arithmetic number, because the mean of its divisors is an integer number (20550565996).

Almost surely, 2^41101131991 is an apocalyptic number.

41101131991 is a deficient number, since it is larger than the sum of its proper divisors (1).

41101131991 is an equidigital number, since it uses as much as digits as its factorization.

41101131991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 31.

The spelling of 41101131991 in words is "forty-one billion, one hundred one million, one hundred thirty-one thousand, nine hundred ninety-one".