20011011112 has 32 divisors (see below), whose sum is σ = 37937925000. Its totient is φ = 9894820608.

The previous prime is 20011011073. The next prime is 20011011113. The reversal of 20011011112 is 21111011002.

It can be written as a sum of positive squares in 4 ways, for example, as 14231058436 + 5779952676 = 119294^2 + 76026^2 .

It is not an unprimeable number, because it can be changed into a prime (20011011113) by changing a digit.

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, 236314 + ... + 309622.

Almost surely, 2^20011011112 is an apocalyptic number.

It is an amenable number.

20011011112 is a deficient number, since it is larger than the sum of its proper divisors (17926913888).

20011011112 is a wasteful number, since it uses less digits than its factorization.

20011011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73693 (or 73689 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20011011112 its reverse (21111011002), we get a palindrome (41122022114).

The spelling of 20011011112 in words is "twenty billion, eleven million, eleven thousand, one hundred twelve".