18011000112 has 40 divisors (see below), whose sum is σ = 53175334656. Its totient is φ = 5145999936.

The previous prime is 18011000107. The next prime is 18011000129. The reversal of 18011000112 is 21100011081.

It is a super-2 number, since 2×18011000112² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18011000091 and 18011000100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26801748 + ... + 26802419.

Almost surely, 2^18011000112 is an apocalyptic number.

18011000112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18011000112 is an abundant number, since it is smaller than the sum of its proper divisors (35164334544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18011000112 is a wasteful number, since it uses less digits than its factorization.

18011000112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53604185 (or 53604179 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 18011000112 its reverse (21100011081), we get a palindrome (39111011193).

The spelling of 18011000112 in words is "eighteen billion, eleven million, one hundred twelve", and thus it is an aban number.