81182060411 has 2 divisors, whose sum is σ = 81182060412. Its totient is φ = 81182060410.

The previous prime is 81182060363. The next prime is 81182060413. The reversal of 81182060411 is 11406028118.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 81182060411 - 2⁶ = 81182060347 is a prime.

Together with 81182060413, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (81182060413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40591030205 + 40591030206.

It is an arithmetic number, because the mean of its divisors is an integer number (40591030206).

Almost surely, 2^81182060411 is an apocalyptic number.

81182060411 is a deficient number, since it is larger than the sum of its proper divisors (1).

81182060411 is an equidigital number, since it uses as much as digits as its factorization.

81182060411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 32.

Adding to 81182060411 its reverse (11406028118), we get a palindrome (92588088529).

The spelling of 81182060411 in words is "eighty-one billion, one hundred eighty-two million, sixty thousand, four hundred eleven".