181017124113 has 16 divisors (see below), whose sum is σ = 285347191680. Its totient is φ = 99871516416.

The previous prime is 181017124111. The next prime is 181017124147. The reversal of 181017124113 is 311421710181.

It is not a de Polignac number, because 181017124113 - 2¹ = 181017124111 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (181017124111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148617720 + ... + 148618937.

It is an arithmetic number, because the mean of its divisors is an integer number (17834199480).

Almost surely, 2^181017124113 is an apocalyptic number.

It is an amenable number.

181017124113 is a deficient number, since it is larger than the sum of its proper divisors (104330067567).

181017124113 is a wasteful number, since it uses less digits than its factorization.

181017124113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297236696.

The product of its (nonzero) digits is 1344, while the sum is 30.

Adding to 181017124113 its reverse (311421710181), we get a palindrome (492438834294).

The spelling of 181017124113 in words is "one hundred eighty-one billion, seventeen million, one hundred twenty-four thousand, one hundred thirteen".