111243311312 has 20 divisors (see below), whose sum is σ = 246324475296. Its totient is φ = 47675704800.

The previous prime is 111243311287. The next prime is 111243311339. The reversal of 111243311312 is 213113342111.

It is a super-2 number, since 2×111243311312² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 496621814 + ... + 496622037.

Almost surely, 2^111243311312 is an apocalyptic number.

It is an amenable number.

111243311312 is an abundant number, since it is smaller than the sum of its proper divisors (135081163984).

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

111243311312 is an equidigital number, since it uses as much as digits as its factorization.

111243311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993243866 (or 993243860 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

Adding to 111243311312 its reverse (213113342111), we get a palindrome (324356653423).

The spelling of 111243311312 in words is "one hundred eleven billion, two hundred forty-three million, three hundred eleven thousand, three hundred twelve".