111999242 has 8 divisors (see below), whose sum is σ = 168089376. Its totient is φ = 55969452.

The previous prime is 111999241. The next prime is 111999253. The reversal of 111999242 is 242999111.

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

It is a junction number, because it is equal to n+sod(n) for n = 111999196 and 111999205.

It is not an unprimeable number, because it can be changed into a prime (111999241) 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, 10118 + ... + 18065.

It is an arithmetic number, because the mean of its divisors is an integer number (21011172).

Almost surely, 2^111999242 is an apocalyptic number.

111999242 is a deficient number, since it is larger than the sum of its proper divisors (56090134).

111999242 is a wasteful number, since it uses less digits than its factorization.

111999242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30172.

The product of its digits is 11664, while the sum is 38.

The square root of 111999242 is about 10582.9694320640. The cubic root of 111999242 is about 482.0273653994.

The spelling of 111999242 in words is "one hundred eleven million, nine hundred ninety-nine thousand, two hundred forty-two".