41173557121 has 2 divisors, whose sum is σ = 41173557122. Its totient is φ = 41173557120.

The previous prime is 41173557107. The next prime is 41173557193. The reversal of 41173557121 is 12175537114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24211360000 + 16962197121 = 155600^2 + 130239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41173557121 is a prime.

It is not a weakly prime, because it can be changed into another prime (41173557221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20586778560 + 20586778561.

It is an arithmetic number, because the mean of its divisors is an integer number (20586778561).

Almost surely, 2^41173557121 is an apocalyptic number.

It is an amenable number.

41173557121 is a deficient number, since it is larger than the sum of its proper divisors (1).

41173557121 is an equidigital number, since it uses as much as digits as its factorization.

41173557121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29400, while the sum is 37.

The spelling of 41173557121 in words is "forty-one billion, one hundred seventy-three million, five hundred fifty-seven thousand, one hundred twenty-one".