111000111312 has 80 divisors (see below), whose sum is σ = 302298365952. Its totient is φ = 35044625280.

The previous prime is 111000111263. The next prime is 111000111323. The reversal of 111000111312 is 213111000111.

It is a super-2 number, since 2×111000111312² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 723648 + ... + 863519.

Almost surely, 2^111000111312 is an apocalyptic number.

111000111312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111000111312 is an abundant number, since it is smaller than the sum of its proper divisors (191298254640).

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

111000111312 is a wasteful number, since it uses less digits than its factorization.

111000111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587256 (or 1587250 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 111000111312 its reverse (213111000111), we get a palindrome (324111111423).

The spelling of 111000111312 in words is "one hundred eleven billion, one hundred eleven thousand, three hundred twelve".