81010411 has 2 divisors, whose sum is σ = 81010412. Its totient is φ = 81010410.

The previous prime is 81010373. The next prime is 81010441. The reversal of 81010411 is 11401018.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 81010411 - 2⁹ = 81009899 is a prime.

It is not a weakly prime, because it can be changed into another prime (81010441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40505205 + 40505206.

It is an arithmetic number, because the mean of its divisors is an integer number (40505206).

Almost surely, 2^81010411 is an apocalyptic number.

81010411 is a deficient number, since it is larger than the sum of its proper divisors (1).

81010411 is an equidigital number, since it uses as much as digits as its factorization.

81010411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

The square root of 81010411 is about 9000.5783703049. The cubic root of 81010411 is about 432.6934076564.

Adding to 81010411 its reverse (11401018), we get a palindrome (92411429).

The spelling of 81010411 in words is "eighty-one million, ten thousand, four hundred eleven".