111143320112 has 80 divisors (see below), whose sum is σ = 237437615520. Its totient is φ = 49978368000.

The previous prime is 111143320087. The next prime is 111143320117. The reversal of 111143320112 is 211023341111.

It is not an unprimeable number, because it can be changed into a prime (111143320117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35070464 + ... + 35073632.

It is an arithmetic number, because the mean of its divisors is an integer number (2967970194).

Almost surely, 2^111143320112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111143320112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118718807760).

111143320112 is an abundant number, since it is smaller than the sum of its proper divisors (126294295408).

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

111143320112 is a wasteful number, since it uses less digits than its factorization.

111143320112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5262 (or 5256 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 111143320112 its reverse (211023341111), we get a palindrome (322166661223).

The spelling of 111143320112 in words is "one hundred eleven billion, one hundred forty-three million, three hundred twenty thousand, one hundred twelve".