242111111 has 8 divisors (see below), whose sum is σ = 273229200. Its totient is φ = 212511040.

The previous prime is 242111101. The next prime is 242111119. The reversal of 242111111 is 111111242.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242111111 is a prime.

It is a Duffinian number.

242111111 is a modest number, since divided by 11111 gives 2421 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242111119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379166 + ... + 379803.

It is an arithmetic number, because the mean of its divisors is an integer number (34153650).

Almost surely, 2^242111111 is an apocalyptic number.

242111111 is a deficient number, since it is larger than the sum of its proper divisors (31118089).

242111111 is a wasteful number, since it uses less digits than its factorization.

242111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759009.

The product of its digits is 16, while the sum is 14.

The square root of 242111111 is about 15559.9200190746. The cubic root of 242111111 is about 623.2633268693.

Adding to 242111111 its reverse (111111242), we get a palindrome (353222353).

It can be divided in two parts, 242 and 111111, that multiplied together give a palindrome (26888862).

The spelling of 242111111 in words is "two hundred forty-two million, one hundred eleven thousand, one hundred eleven".