111330123220 has 24 divisors (see below), whose sum is σ = 243958184064. Its totient is φ = 42595873056.

The previous prime is 111330123199. The next prime is 111330123221. The reversal of 111330123220 is 22321033111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111330123221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121010544 + ... + 121011463.

It is an arithmetic number, because the mean of its divisors is an integer number (10164924336).

Almost surely, 2^111330123220 is an apocalyptic number.

111330123220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111330123220 is an abundant number, since it is smaller than the sum of its proper divisors (132628060844).

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

111330123220 is a wasteful number, since it uses less digits than its factorization.

111330123220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242022039 (or 242022037 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 111330123220 its reverse (22321033111), we get a palindrome (133651156331).

The spelling of 111330123220 in words is "one hundred eleven billion, three hundred thirty million, one hundred twenty-three thousand, two hundred twenty".