111003312 has 80 divisors (see below), whose sum is σ = 338327552. Its totient is φ = 30689280.

The previous prime is 111003283. The next prime is 111003323. The reversal of 111003312 is 213300111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5088 + ... + 15744.

Almost surely, 2^111003312 is an apocalyptic number.

111003312 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 111003312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169163776).

111003312 is an abundant number, since it is smaller than the sum of its proper divisors (227324240).

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

111003312 is a wasteful number, since it uses less digits than its factorization.

111003312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10706 (or 10700 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 111003312 is about 10535.8109322444. The cubic root of 111003312 is about 480.5943332407.

Adding to 111003312 its reverse (213300111), we get a palindrome (324303423).

The spelling of 111003312 in words is "one hundred eleven million, three thousand, three hundred twelve".