41221204243 has 2 divisors, whose sum is σ = 41221204244. Its totient is φ = 41221204242.

The previous prime is 41221204231. The next prime is 41221204303. The reversal of 41221204243 is 34240212214.

41221204243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41221204243 is a prime.

It is not a weakly prime, because it can be changed into another prime (41221204043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20610602121 + 20610602122.

It is an arithmetic number, because the mean of its divisors is an integer number (20610602122).

Almost surely, 2^41221204243 is an apocalyptic number.

41221204243 is a deficient number, since it is larger than the sum of its proper divisors (1).

41221204243 is an equidigital number, since it uses as much as digits as its factorization.

41221204243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 41221204243 its reverse (34240212214), we get a palindrome (75461416457).

The spelling of 41221204243 in words is "forty-one billion, two hundred twenty-one million, two hundred four thousand, two hundred forty-three".