41100421991 has 2 divisors, whose sum is σ = 41100421992. Its totient is φ = 41100421990.

The previous prime is 41100421913. The next prime is 41100422009. The reversal of 41100421991 is 19912400114.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 41100421991 - 2²² = 41096227687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41100421591) 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, 20550210995 + 20550210996.

It is an arithmetic number, because the mean of its divisors is an integer number (20550210996).

Almost surely, 2^41100421991 is an apocalyptic number.

41100421991 is a deficient number, since it is larger than the sum of its proper divisors (1).

41100421991 is an equidigital number, since it uses as much as digits as its factorization.

41100421991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 41100421991 in words is "forty-one billion, one hundred million, four hundred twenty-one thousand, nine hundred ninety-one".