20111001112100 has 36 divisors (see below), whose sum is σ = 45538301653824. Its totient is φ = 7694643902880.

The previous prime is 20111001112073. The next prime is 20111001112141. The reversal of 20111001112100 is 121110011102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4371954464 + ... + 4371959063.

Almost surely, 2^{20111001112100} is an apocalyptic number.

20111001112100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20111001112100 is an abundant number, since it is smaller than the sum of its proper divisors (25427300541724).

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

20111001112100 is a wasteful number, since it uses less digits than its factorization.

20111001112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8743913564 (or 8743913557 counting only the distinct ones).

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

Adding to 20111001112100 its reverse (121110011102), we get a palindrome (20232111123202).

The spelling of 20111001112100 in words is "twenty trillion, one hundred eleven billion, one million, one hundred twelve thousand, one hundred".