111442331112 has 192 divisors, whose sum is σ = 355984243200. Its totient is φ = 28853193600.

The previous prime is 111442330981. The next prime is 111442331137. The reversal of 111442331112 is 211133244111.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 405487 + ... + 622337.

It is an arithmetic number, because the mean of its divisors is an integer number (1854084600).

Almost surely, 2^111442331112 is an apocalyptic number.

111442331112 is a gapful number since it is divisible by the number (12) 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 111442331112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177992121600).

111442331112 is an abundant number, since it is smaller than the sum of its proper divisors (244541912088).

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

111442331112 is a wasteful number, since it uses less digits than its factorization.

111442331112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216916 (or 216905 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

Adding to 111442331112 its reverse (211133244111), we get a palindrome (322575575223).

The spelling of 111442331112 in words is "one hundred eleven billion, four hundred forty-two million, three hundred thirty-one thousand, one hundred twelve".