20111110011000 has 96 divisors (see below), whose sum is σ = 67975551867600. Its totient is φ = 5362962667200.

The previous prime is 20111110010993. The next prime is 20111110011001. The reversal of 20111110011000 is 11001111102.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111110011001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1117274890 + ... + 1117292889.

Almost surely, 2^{20111110011000} is an apocalyptic number.

20111110011000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20111110011000 is an abundant number, since it is smaller than the sum of its proper divisors (47864441856600).

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

20111110011000 is a wasteful number, since it uses less digits than its factorization.

20111110011000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234567806 (or 2234567789 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 20111110011000 its reverse (11001111102), we get a palindrome (20122111122102).

The spelling of 20111110011000 in words is "twenty trillion, one hundred eleven billion, one hundred ten million, eleven thousand".