20111011120100 has 36 divisors (see below), whose sum is σ = 43641133549104. Its totient is φ = 8044360315680.

The previous prime is 20111011120051. The next prime is 20111011120103. The reversal of 20111011120100 is 102111011102.

20111011120100 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (20111011120103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22602239 + ... + 23475161.

Almost surely, 2^{20111011120100} is an apocalyptic number.

20111011120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20111011120100 is an abundant number, since it is smaller than the sum of its proper divisors (23530122429004).

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

20111011120100 is a wasteful number, since it uses less digits than its factorization.

20111011120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103324 (or 1103317 counting only the distinct ones).

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

Adding to 20111011120100 its reverse (102111011102), we get a palindrome (20213122131202).

The spelling of 20111011120100 in words is "twenty trillion, one hundred eleven billion, eleven million, one hundred twenty thousand, one hundred".