242311121 has 8 divisors (see below), whose sum is σ = 261258984. Its totient is φ = 223407360.

The previous prime is 242311117. The next prime is 242311151. The reversal of 242311121 is 121113242.

It can be written as a sum of positive squares in 4 ways, for example, as 19704721 + 222606400 = 4439^2 + 14920^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 242311121 - 2² = 242311117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242311121.

It is not an unprimeable number, because it can be changed into a prime (242311151) 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 7 ways as a sum of consecutive naturals, for example, 875 + ... + 22031.

It is an arithmetic number, because the mean of its divisors is an integer number (32657373).

Almost surely, 2^242311121 is an apocalyptic number.

It is an amenable number.

242311121 is a deficient number, since it is larger than the sum of its proper divisors (18947863).

242311121 is a wasteful number, since it uses less digits than its factorization.

242311121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22051.

The product of its digits is 96, while the sum is 17.

The square root of 242311121 is about 15566.3457818462. The cubic root of 242311121 is about 623.4349073005.

Adding to 242311121 its reverse (121113242), we get a palindrome (363424363).

It can be divided in two parts, 24231 and 1121, that added together give a palindrome (25352).

The spelling of 242311121 in words is "two hundred forty-two million, three hundred eleven thousand, one hundred twenty-one".