20011010112 has 42 divisors (see below), whose sum is σ = 57357949038. Its totient is φ = 6670336512.

The previous prime is 20011010087. The next prime is 20011010161. The reversal of 20011010112 is 21101011002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18348327936 + 1662682176 = 135456^2 + 40776^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20011010094 and 20011010103.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17370093 + ... + 17371244.

Almost surely, 2^20011010112 is an apocalyptic number.

It is an amenable number.

20011010112 is an abundant number, since it is smaller than the sum of its proper divisors (37346938926).

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

20011010112 is a wasteful number, since it uses less digits than its factorization.

20011010112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34741355 (or 34741342 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20011010112 its reverse (21101011002), we get a palindrome (41112021114).

The spelling of 20011010112 in words is "twenty billion, eleven million, ten thousand, one hundred twelve".