11230021120 has 80 divisors (see below), whose sum is σ = 27034550928. Its totient is φ = 4473856000.

The previous prime is 11230021087. The next prime is 11230021171. The reversal of 11230021120 is 2112003211.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×11230021120² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11230021120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 633822 + ... + 651298.

Almost surely, 2^11230021120 is an apocalyptic number.

11230021120 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 11230021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13517275464).

11230021120 is an abundant number, since it is smaller than the sum of its proper divisors (15804529808).

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

11230021120 is an equidigital number, since it uses as much as digits as its factorization.

11230021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17751 (or 17735 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11230021120 its reverse (2112003211), we get a palindrome (13342024331).

The spelling of 11230021120 in words is "eleven billion, two hundred thirty million, twenty-one thousand, one hundred twenty".