111300312 has 64 divisors (see below), whose sum is σ = 292366080. Its totient is φ = 35240832.

The previous prime is 111300311. The next prime is 111300331. The reversal of 111300312 is 213003111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111300311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89358 + ... + 90594.

It is an arithmetic number, because the mean of its divisors is an integer number (4568220).

Almost surely, 2^111300312 is an apocalyptic number.

111300312 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 111300312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146183040).

111300312 is an abundant number, since it is smaller than the sum of its proper divisors (181065768).

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

111300312 is a wasteful number, since it uses less digits than its factorization.

111300312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432 (or 1428 counting only the distinct ones).

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

The square root of 111300312 is about 10549.8963028079. The cubic root of 111300312 is about 481.0225769317.

Adding to 111300312 its reverse (213003111), we get a palindrome (324303423).

The spelling of 111300312 in words is "one hundred eleven million, three hundred thousand, three hundred twelve".