20011120000 has 160 divisors (see below), whose sum is σ = 51429787200. Its totient is φ = 7745280000.

The previous prime is 20011119983. The next prime is 20011120021. The reversal of 20011120000 is 2111002.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2475966 + ... + 2484034.

It is an arithmetic number, because the mean of its divisors is an integer number (321436170).

Almost surely, 2^20011120000 is an apocalyptic number.

20011120000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20011120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25714893600).

20011120000 is an abundant number, since it is smaller than the sum of its proper divisors (31418667200).

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

20011120000 is an frugal number, since it uses more digits than its factorization.

20011120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8134 (or 8107 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20011120000 its reverse (2111002), we get a palindrome (20013231002).

The spelling of 20011120000 in words is "twenty billion, eleven million, one hundred twenty thousand".