20110112 has 24 divisors (see below), whose sum is σ = 43191792. Its totient is φ = 9140800.

The previous prime is 20110109. The next prime is 20110141. The reversal of 20110112 is 21101102.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 20110112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28214 + ... + 28917.

It is an arithmetic number, because the mean of its divisors is an integer number (1799658).

Almost surely, 2^20110112 is an apocalyptic number.

20110112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20110112 is an abundant number, since it is smaller than the sum of its proper divisors (23081680).

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

20110112 is a wasteful number, since it uses less digits than its factorization.

20110112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57152 (or 57144 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 20110112 is about 4484.4299526250. The cubic root of 20110112 is about 271.9390001618.

Adding to 20110112 its reverse (21101102), we get a palindrome (41211214).

The spelling of 20110112 in words is "twenty million, one hundred ten thousand, one hundred twelve".