242042111 has 4 divisors (see below), whose sum is σ = 242099424. Its totient is φ = 241984800.

The previous prime is 242042089. The next prime is 242042113. The reversal of 242042111 is 111240242.

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 242042111 - 2¹⁴ = 242025727 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 242042111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242042113) 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, 21770 + ... + 30951.

It is an arithmetic number, because the mean of its divisors is an integer number (60524856).

Almost surely, 2^242042111 is an apocalyptic number.

242042111 is a deficient number, since it is larger than the sum of its proper divisors (57313).

242042111 is an equidigital number, since it uses as much as digits as its factorization.

242042111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57312.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 242042111 is about 15557.7026260306. The cubic root of 242042111 is about 623.2041126578.

Adding to 242042111 its reverse (111240242), we get a palindrome (353282353).

The spelling of 242042111 in words is "two hundred forty-two million, forty-two thousand, one hundred eleven".