111323021312 has 32 divisors (see below), whose sum is σ = 222642710850. Its totient is φ = 55661494272.

The previous prime is 111323021297. The next prime is 111323021347. The reversal of 111323021312 is 213120323111.

It is a happy number.

111323021312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 79803990016 + 31519031296 = 282496^2 + 177536^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1665887 + ... + 1731422.

Almost surely, 2^111323021312 is an apocalyptic number.

It is an amenable number.

111323021312 is a deficient number, since it is larger than the sum of its proper divisors (111319689538).

111323021312 is an frugal number, since it uses more digits than its factorization.

111323021312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397339 (or 3397311 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111323021312 its reverse (213120323111), we get a palindrome (324443344423).

The spelling of 111323021312 in words is "one hundred eleven billion, three hundred twenty-three million, twenty-one thousand, three hundred twelve".