20124112 has 20 divisors (see below), whose sum is σ = 39942756. Its totient is φ = 9816320.

The previous prime is 20124109. The next prime is 20124113. The reversal of 20124112 is 21142102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6990736 + 13133376 = 2644^2 + 3624^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20124092 and 20124101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20124113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14683 + ... + 15994.

Almost surely, 2^20124112 is an apocalyptic number.

It is an amenable number.

20124112 is a deficient number, since it is larger than the sum of its proper divisors (19818644).

20124112 is a wasteful number, since it uses less digits than its factorization.

20124112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30726 (or 30720 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 20124112 is about 4485.9906375292. The cubic root of 20124112 is about 272.0020905260.

Adding to 20124112 its reverse (21142102), we get a palindrome (41266214).

The spelling of 20124112 in words is "twenty million, one hundred twenty-four thousand, one hundred twelve".