111000000312 has 48 divisors (see below), whose sum is σ = 301794798240. Its totient is φ = 36856025088.

The previous prime is 111000000289. The next prime is 111000000313. The reversal of 111000000312 is 213000000111.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 111000000294 and 111000000303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111000000313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2980848 + ... + 3017855.

It is an arithmetic number, because the mean of its divisors is an integer number (6287391630).

Almost surely, 2^111000000312 is an apocalyptic number.

111000000312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111000000312 is an abundant number, since it is smaller than the sum of its proper divisors (190794797928).

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

111000000312 is a wasteful number, since it uses less digits than its factorization.

111000000312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5998972 (or 5998965 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 111000000312 its reverse (213000000111), we get a palindrome (324000000423).

The spelling of 111000000312 in words is "one hundred eleven billion, three hundred twelve", and thus it is an aban number.