20010112 has 16 divisors (see below), whose sum is σ = 39864150. Its totient is φ = 10004992.

The previous prime is 20010079. The next prime is 20010127. The reversal of 20010112 is 21101002.

It can be written as a sum of positive squares in only one way, i.e., 17106496 + 2903616 = 4136^2 + 1704^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 20010095 and 20010104.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78037 + ... + 78292.

Almost surely, 2^20010112 is an apocalyptic number.

It is an amenable number.

20010112 is a deficient number, since it is larger than the sum of its proper divisors (19854038).

20010112 is an equidigital number, since it uses as much as digits as its factorization.

20010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156343 (or 156331 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 20010112 is about 4473.2663681028. The cubic root of 20010112 is about 271.4875009367.

Adding to 20010112 its reverse (21101002), we get a palindrome (41111114).

The spelling of 20010112 in words is "twenty million, ten thousand, one hundred twelve".