11123333020 has 96 divisors (see below), whose sum is σ = 25178065920. Its totient is φ = 4114563840.

The previous prime is 11123332999. The next prime is 11123333027. The reversal of 11123333020 is 2033332111.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123333027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10483290 + ... + 10484350.

It is an arithmetic number, because the mean of its divisors is an integer number (262271520).

Almost surely, 2^11123333020 is an apocalyptic number.

11123333020 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 11123333020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12589032960).

11123333020 is an abundant number, since it is smaller than the sum of its proper divisors (14054732900).

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

11123333020 is a wasteful number, since it uses less digits than its factorization.

11123333020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723 (or 1721 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 11123333020 its reverse (2033332111), we get a palindrome (13156665131).

Subtracting from 11123333020 its reverse (2033332111), we obtain a palindrome (9090000909).

The spelling of 11123333020 in words is "eleven billion, one hundred twenty-three million, three hundred thirty-three thousand, twenty".