23111120011100 has 144 divisors (see below), whose sum is σ = 54943089729696. Its totient is φ = 8368336896000.

The previous prime is 23111120011097. The next prime is 23111120011123. The reversal of 23111120011100 is 111002111132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 392209640 + ... + 392268560.

It is an arithmetic number, because the mean of its divisors is an integer number (381549234234).

Almost surely, 2^{23111120011100} is an apocalyptic number.

23111120011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23111120011100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27471544864848).

23111120011100 is an abundant number, since it is smaller than the sum of its proper divisors (31831969718596).

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

23111120011100 is a wasteful number, since it uses less digits than its factorization.

23111120011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60456 (or 60449 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 23111120011100 its reverse (111002111132), we get a palindrome (23222122122232).

The spelling of 23111120011100 in words is "twenty-three trillion, one hundred eleven billion, one hundred twenty million, eleven thousand, one hundred".