11123143321100 has 144 divisors (see below), whose sum is σ = 26480622319200. Its totient is φ = 4038888222720.

The previous prime is 11123143321051. The next prime is 11123143321109. The reversal of 11123143321100 is 112334132111.

It is not an unprimeable number, because it can be changed into a prime (11123143321109) 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 47 ways as a sum of consecutive naturals, for example, 4269686 + ... + 6362114.

It is an arithmetic number, because the mean of its divisors is an integer number (183893210550).

Almost surely, 2^{11123143321100} is an apocalyptic number.

11123143321100 is a gapful number since it is divisible by the number (10) 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 11123143321100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13240311159600).

11123143321100 is an abundant number, since it is smaller than the sum of its proper divisors (15357478998100).

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

11123143321100 is a wasteful number, since it uses less digits than its factorization.

11123143321100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092572 (or 2092565 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 11123143321100 its reverse (112334132111), we get a palindrome (11235477453211).

The spelling of 11123143321100 in words is "eleven trillion, one hundred twenty-three billion, one hundred forty-three million, three hundred twenty-one thousand, one hundred".