41420320243 has 2 divisors, whose sum is σ = 41420320244. Its totient is φ = 41420320242.

The previous prime is 41420320241. The next prime is 41420320313. The reversal of 41420320243 is 34202302414.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 41420320243 - 2¹ = 41420320241 is a prime.

Together with 41420320241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (41420320241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20710160121 + 20710160122.

It is an arithmetic number, because the mean of its divisors is an integer number (20710160122).

Almost surely, 2^41420320243 is an apocalyptic number.

41420320243 is a deficient number, since it is larger than the sum of its proper divisors (1).

41420320243 is an equidigital number, since it uses as much as digits as its factorization.

41420320243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 41420320243 its reverse (34202302414), we get a palindrome (75622622657).

The spelling of 41420320243 in words is "forty-one billion, four hundred twenty million, three hundred twenty thousand, two hundred forty-three".