242112331 has 4 divisors (see below), whose sum is σ = 244255032. Its totient is φ = 239969632.

The previous prime is 242112313. The next prime is 242112359. The reversal of 242112331 is 133211242.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242112331 - 2⁷ = 242112203 is a prime.

It is a super-2 number, since 2×242112331² = 117236761644507122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242112299 and 242112308.

It is not an unprimeable number, because it can be changed into a prime (242112361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071181 + ... + 1071406.

It is an arithmetic number, because the mean of its divisors is an integer number (61063758).

Almost surely, 2^242112331 is an apocalyptic number.

242112331 is a deficient number, since it is larger than the sum of its proper divisors (2142701).

242112331 is a wasteful number, since it uses less digits than its factorization.

242112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142700.

The product of its digits is 288, while the sum is 19.

The square root of 242112331 is about 15559.9592223116. The cubic root of 242112331 is about 623.2643737440.

Adding to 242112331 its reverse (133211242), we get a palindrome (375323573).

The spelling of 242112331 in words is "two hundred forty-two million, one hundred twelve thousand, three hundred thirty-one".