11123322120 has 96 divisors (see below), whose sum is σ = 36372772800. Its totient is φ = 2948006016.

The previous prime is 11123322103. The next prime is 11123322121. The reversal of 11123322120 is 2122332111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11123322093 and 11123322102.

It is not an unprimeable number, because it can be changed into a prime (11123322121) 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, 36100 + ... + 153459.

It is an arithmetic number, because the mean of its divisors is an integer number (378883050).

Almost surely, 2^11123322120 is an apocalyptic number.

11123322120 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 11123322120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18186386400).

11123322120 is an abundant number, since it is smaller than the sum of its proper divisors (25249450680).

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

11123322120 is a wasteful number, since it uses less digits than its factorization.

11123322120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189739 (or 189732 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11123322120 its reverse (2122332111), we get a palindrome (13245654231).

Subtracting from 11123322120 its reverse (2122332111), we obtain a palindrome (9000990009).

The spelling of 11123322120 in words is "eleven billion, one hundred twenty-three million, three hundred twenty-two thousand, one hundred twenty".