20142112 has 24 divisors (see below), whose sum is σ = 41380416. Its totient is φ = 9632832.

The previous prime is 20142091. The next prime is 20142131. The reversal of 20142112 is 21124102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20142092 and 20142101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12948 + ... + 14419.

It is an arithmetic number, because the mean of its divisors is an integer number (1724184).

Almost surely, 2^20142112 is an apocalyptic number.

It is an amenable number.

20142112 is an abundant number, since it is smaller than the sum of its proper divisors (21238304).

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

20142112 is a wasteful number, since it uses less digits than its factorization.

20142112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27400 (or 27392 counting only the distinct ones).

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

The square root of 20142112 is about 4487.9964349362. The cubic root of 20142112 is about 272.0831637282.

Adding to 20142112 its product of nonzero digits (32), we get a square (20142144 = 4488²).

Adding to 20142112 its reverse (21124102), we get a palindrome (41266214).

The spelling of 20142112 in words is "twenty million, one hundred forty-two thousand, one hundred twelve".