20102020112 has 10 divisors (see below), whose sum is σ = 38947663998. Its totient is φ = 10051010048.

The previous prime is 20102020097. The next prime is 20102020139. The reversal of 20102020112 is 21102020102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18907350016 + 1194670096 = 137504^2 + 34564^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20102020093 and 20102020102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628188113 + ... + 628188144.

Almost surely, 2^20102020112 is an apocalyptic number.

It is an amenable number.

20102020112 is a deficient number, since it is larger than the sum of its proper divisors (18845643886).

20102020112 is a wasteful number, since it uses less digits than its factorization.

20102020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256376265 (or 1256376259 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20102020112 its reverse (21102020102), we get a palindrome (41204040214).

The spelling of 20102020112 in words is "twenty billion, one hundred two million, twenty thousand, one hundred twelve".