11123030323020 has 384 divisors, whose sum is σ = 41185196236800. Its totient is φ = 2172915763200.

The previous prime is 11123030322977. The next prime is 11123030323037. The reversal of 11123030323020 is 2032303032111.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11015536 + ... + 11982824.

It is an arithmetic number, because the mean of its divisors is an integer number (107253115200).

Almost surely, 2^{11123030323020} is an apocalyptic number.

11123030323020 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 11123030323020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20592598118400).

11123030323020 is an abundant number, since it is smaller than the sum of its proper divisors (30062165913780).

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

11123030323020 is a wasteful number, since it uses less digits than its factorization.

11123030323020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967469 (or 967467 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 11123030323020 its reverse (2032303032111), we get a palindrome (13155333355131).

The spelling of 11123030323020 in words is "eleven trillion, one hundred twenty-three billion, thirty million, three hundred twenty-three thousand, twenty".