20001113002112 has 128 divisors (see below), whose sum is σ = 44307272056320. Its totient is φ = 8917326028800.

The previous prime is 20001113002097. The next prime is 20001113002183. The reversal of 20001113002112 is 21120031110002.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18066353 + ... + 19141455.

It is an arithmetic number, because the mean of its divisors is an integer number (346150562940).

Almost surely, 2^{20001113002112} is an apocalyptic number.

20001113002112 is a gapful number since it is divisible by the number (22) 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 20001113002112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22153636028160).

20001113002112 is an abundant number, since it is smaller than the sum of its proper divisors (24306159054208).

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

20001113002112 is a wasteful number, since it uses less digits than its factorization.

20001113002112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075382 (or 1075370 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20001113002112 its reverse (21120031110002), we get a palindrome (41121144112114).

The spelling of 20001113002112 in words is "twenty trillion, one billion, one hundred thirteen million, two thousand, one hundred twelve".