20001113112 has 64 divisors (see below), whose sum is σ = 50675414400. Its totient is φ = 6577683200.

The previous prime is 20001113089. The next prime is 20001113147. The reversal of 20001113112 is 21131110002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 987487 + ... + 1007537.

It is an arithmetic number, because the mean of its divisors is an integer number (791803350).

Almost surely, 2^20001113112 is an apocalyptic number.

It is an amenable number.

20001113112 is an abundant number, since it is smaller than the sum of its proper divisors (30674301288).

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

20001113112 is a wasteful number, since it uses less digits than its factorization.

20001113112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20616 (or 20612 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 20001113112 its reverse (21131110002), we get a palindrome (41132223114).

The spelling of 20001113112 in words is "twenty billion, one million, one hundred thirteen thousand, one hundred twelve".