20010011112 has 192 divisors, whose sum is σ = 66831972480. Its totient is φ = 5266930176.

The previous prime is 20010011111. The next prime is 20010011113. The reversal of 20010011112 is 21111001002.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20010011111) and next prime (20010011113).

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 = 20010011094 and 20010011103.

It is not an unprimeable number, because it can be changed into a prime (20010011111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3646723 + ... + 3652205.

It is an arithmetic number, because the mean of its divisors is an integer number (348083190).

Almost surely, 2^20010011112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20010011112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33415986240).

20010011112 is an abundant number, since it is smaller than the sum of its proper divisors (46821961368).

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

20010011112 is a wasteful number, since it uses less digits than its factorization.

20010011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6072 (or 6065 counting only the distinct ones).

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

Adding to 20010011112 its reverse (21111001002), we get a palindrome (41121012114).

The spelling of 20010011112 in words is "twenty billion, ten million, eleven thousand, one hundred twelve".