11111101018 has 8 divisors (see below), whose sum is σ = 16667848512. Its totient is φ = 5555151516.

The previous prime is 11111100997. The next prime is 11111101019. The reversal of 11111101018 is 81010111111.

11111101018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11111100992 and 11111101010.

It is not an unprimeable number, because it can be changed into a prime (11111101019) 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 3 ways as a sum of consecutive naturals, for example, 163380 + ... + 221167.

It is an arithmetic number, because the mean of its divisors is an integer number (2083481064).

Almost surely, 2^11111101018 is an apocalyptic number.

11111101018 is a deficient number, since it is larger than the sum of its proper divisors (5556747494).

11111101018 is a wasteful number, since it uses less digits than its factorization.

11111101018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398996.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 11111101018 its reverse (81010111111), we get a palindrome (92121212129).

The spelling of 11111101018 in words is "eleven billion, one hundred eleven million, one hundred one thousand, eighteen".