20101020112 has 40 divisors (see below), whose sum is σ = 39869010720. Its totient is φ = 9812449920.

The previous prime is 20101020109. The next prime is 20101020127. The reversal of 20101020112 is 21102010102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2017062 + ... + 2027002.

It is an arithmetic number, because the mean of its divisors is an integer number (996725268).

Almost surely, 2^20101020112 is an apocalyptic number.

It is an amenable number.

20101020112 is a deficient number, since it is larger than the sum of its proper divisors (19767990608).

20101020112 is a wasteful number, since it uses less digits than its factorization.

20101020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12931 (or 12925 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20101020112 its reverse (21102010102), we get a palindrome (41203030214).

It can be divided in two parts, 201010 and 20112, that added together give a palindrome (221122).

The spelling of 20101020112 in words is "twenty billion, one hundred one million, twenty thousand, one hundred twelve".