11320123220 has 24 divisors (see below), whose sum is σ = 27168296064. Its totient is φ = 3881185056.

The previous prime is 11320123211. The next prime is 11320123229. The reversal of 11320123220 is 2232102311.

It is an interprime number because it is at equal distance from previous prime (11320123211) and next prime (11320123229).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11320123229) 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 7 ways as a sum of consecutive naturals, for example, 40428872 + ... + 40429151.

It is an arithmetic number, because the mean of its divisors is an integer number (1132012336).

Almost surely, 2^11320123220 is an apocalyptic number.

11320123220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11320123220 is an abundant number, since it is smaller than the sum of its proper divisors (15848172844).

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

11320123220 is a wasteful number, since it uses less digits than its factorization.

11320123220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80858039 (or 80858037 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 11320123220 its reverse (2232102311), we get a palindrome (13552225531).

The spelling of 11320123220 in words is "eleven billion, three hundred twenty million, one hundred twenty-three thousand, two hundred twenty".