111243234 has 8 divisors (see below), whose sum is σ = 222486480. Its totient is φ = 37081076.

The previous prime is 111243191. The next prime is 111243241. The reversal of 111243234 is 432342111.

It is a sphenic number, since it is the product of 3 distinct primes.

111243234 is an admirable number.

It is a super-2 number, since 2×111243234² = 24750114221557512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111243234.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9270264 + ... + 9270275.

It is an arithmetic number, because the mean of its divisors is an integer number (27810810).

Almost surely, 2^111243234 is an apocalyptic number.

111243234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

111243234 is a wasteful number, since it uses less digits than its factorization.

111243234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18540544.

The product of its digits is 576, while the sum is 21.

The square root of 111243234 is about 10547.1908108273. The cubic root of 111243234 is about 480.9403354690.

Adding to 111243234 its reverse (432342111), we get a palindrome (543585345).

The spelling of 111243234 in words is "one hundred eleven million, two hundred forty-three thousand, two hundred thirty-four".