20011110112000 has 144 divisors (see below), whose sum is σ = 56971631126592. Its totient is φ = 6860951961600.

The previous prime is 20011110111983. The next prime is 20011110112003. The reversal of 20011110112000 is 21101111002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (20011110112003) 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 15 ways as a sum of consecutive naturals, for example, 44443657 + ... + 44891656.

It is an arithmetic number, because the mean of its divisors is an integer number (395636327268).

Almost surely, 2^{20011110112000} is an apocalyptic number.

20011110112000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011110112000 is an abundant number, since it is smaller than the sum of its proper divisors (36960521014592).

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

20011110112000 is an frugal number, since it uses more digits than its factorization.

20011110112000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89335351 (or 89335327 counting only the distinct ones).

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

Adding to 20011110112000 its reverse (21101111002), we get a palindrome (20032211223002).

The spelling of 20011110112000 in words is "twenty trillion, eleven billion, one hundred ten million, one hundred twelve thousand".