20011001112 has 48 divisors (see below), whose sum is σ = 54216424080. Its totient is φ = 6667876800.

The previous prime is 20011001093. The next prime is 20011001137. The reversal of 20011001112 is 21110011002.

It is a happy number.

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 = 20011001094 and 20011001103.

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 11 ways as a sum of consecutive naturals, for example, 151162 + ... + 250742.

It is an arithmetic number, because the mean of its divisors is an integer number (1129508835).

Almost surely, 2^20011001112 is an apocalyptic number.

It is an amenable number.

20011001112 is an abundant number, since it is smaller than the sum of its proper divisors (34205422968).

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

20011001112 is a wasteful number, since it uses less digits than its factorization.

20011001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102384 (or 102377 counting only the distinct ones).

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

Adding to 20011001112 its reverse (21110011002), we get a palindrome (41121012114).

The spelling of 20011001112 in words is "twenty billion, eleven million, one thousand, one hundred twelve".