18100102118 has 32 divisors (see below), whose sum is σ = 31283884800. Its totient is φ = 7693517664.

The previous prime is 18100102109. The next prime is 18100102121. The reversal of 18100102118 is 81120100181.

It is a super-2 number, since 2×18100102118² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18100102093 and 18100102102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2153921 + ... + 2162307.

It is an arithmetic number, because the mean of its divisors is an integer number (977621400).

Almost surely, 2^18100102118 is an apocalyptic number.

18100102118 is a deficient number, since it is larger than the sum of its proper divisors (13183782682).

18100102118 is a wasteful number, since it uses less digits than its factorization.

18100102118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9644.

The product of its (nonzero) digits is 128, while the sum is 23.

Adding to 18100102118 its reverse (81120100181), we get a palindrome (99220202299).

The spelling of 18100102118 in words is "eighteen billion, one hundred million, one hundred two thousand, one hundred eighteen".