111204312 has 16 divisors (see below), whose sum is σ = 278010840. Its totient is φ = 37068096.

The previous prime is 111204311. The next prime is 111204329. The reversal of 111204312 is 213402111.

It is a junction number, because it is equal to n+sod(n) for n = 111204291 and 111204300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111204311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2316733 + ... + 2316780.

Almost surely, 2^111204312 is an apocalyptic number.

111204312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111204312 is an abundant number, since it is smaller than the sum of its proper divisors (166806528).

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

111204312 is a wasteful number, since it uses less digits than its factorization.

111204312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4633522 (or 4633518 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 111204312 is about 10545.3455135429. The cubic root of 111204312 is about 480.8842381447.

Adding to 111204312 its reverse (213402111), we get a palindrome (324606423).

The spelling of 111204312 in words is "one hundred eleven million, two hundred four thousand, three hundred twelve".