20112011101100 has 36 divisors (see below), whose sum is σ = 44066783180784. Its totient is φ = 7966699538880.

The previous prime is 20112011101099. The next prime is 20112011101103. The reversal of 20112011101100 is 110111021102.

It is not an unprimeable number, because it can be changed into a prime (20112011101103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 976300919 + ... + 976321518.

Almost surely, 2^{20112011101100} is an apocalyptic number.

20112011101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112011101100 is an abundant number, since it is smaller than the sum of its proper divisors (23954772079684).

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

20112011101100 is a wasteful number, since it uses less digits than its factorization.

20112011101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952622554 (or 1952622547 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 20112011101100 its reverse (110111021102), we get a palindrome (20222122122202).

The spelling of 20112011101100 in words is "twenty trillion, one hundred twelve billion, eleven million, one hundred one thousand, one hundred".