242263123 has 4 divisors (see below), whose sum is σ = 243889200. Its totient is φ = 240637048.

The previous prime is 242263121. The next prime is 242263157. The reversal of 242263123 is 321362242.

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 242263123 - 2¹ = 242263121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242263121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812815 + ... + 813112.

It is an arithmetic number, because the mean of its divisors is an integer number (60972300).

Almost surely, 2^242263123 is an apocalyptic number.

242263123 is a deficient number, since it is larger than the sum of its proper divisors (1626077).

242263123 is a wasteful number, since it uses less digits than its factorization.

242263123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626076.

The product of its digits is 3456, while the sum is 25.

The square root of 242263123 is about 15564.8039820616. The cubic root of 242263123 is about 623.3937403845.

The spelling of 242263123 in words is "two hundred forty-two million, two hundred sixty-three thousand, one hundred twenty-three".