20320112 has 20 divisors (see below), whose sum is σ = 39722160. Its totient is φ = 10069248.

The previous prime is 20320103. The next prime is 20320171. The reversal of 20320112 is 21102302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20320093 and 20320102.

It is a congruent number.

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, 3812 + ... + 7427.

It is an arithmetic number, because the mean of its divisors is an integer number (1986108).

Almost surely, 2^20320112 is an apocalyptic number.

It is an amenable number.

20320112 is a deficient number, since it is larger than the sum of its proper divisors (19402048).

20320112 is a wasteful number, since it uses less digits than its factorization.

20320112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11360 (or 11354 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20320112 is about 4507.7834908079. The cubic root of 20320112 is about 272.8822993092.

Adding to 20320112 its reverse (21102302), we get a palindrome (41422414).

The spelling of 20320112 in words is "twenty million, three hundred twenty thousand, one hundred twelve".