41312051321 has 2 divisors, whose sum is σ = 41312051322. Its totient is φ = 41312051320.

The previous prime is 41312051317. The next prime is 41312051377. The reversal of 41312051321 is 12315021314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33169515625 + 8142535696 = 182125^2 + 90236^2 .

It is a cyclic number.

It is not a de Polignac number, because 41312051321 - 2² = 41312051317 is a prime.

It is not a weakly prime, because it can be changed into another prime (41312071321) 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, 20656025660 + 20656025661.

It is an arithmetic number, because the mean of its divisors is an integer number (20656025661).

Almost surely, 2^41312051321 is an apocalyptic number.

It is an amenable number.

41312051321 is a deficient number, since it is larger than the sum of its proper divisors (1).

41312051321 is an equidigital number, since it uses as much as digits as its factorization.

41312051321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 41312051321 its reverse (12315021314), we get a palindrome (53627072635).

The spelling of 41312051321 in words is "forty-one billion, three hundred twelve million, fifty-one thousand, three hundred twenty-one".