242420123 has 8 divisors (see below), whose sum is σ = 265803120. Its totient is φ = 219261280.

The previous prime is 242420083. The next prime is 242420147. The reversal of 242420123 is 321024242.

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 242420123 - 2⁸ = 242419867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242420095 and 242420104.

It is not an unprimeable number, because it can be changed into a prime (242420623) 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, 53768 + ... + 58101.

It is an arithmetic number, because the mean of its divisors is an integer number (33225390).

Almost surely, 2^242420123 is an apocalyptic number.

242420123 is a deficient number, since it is larger than the sum of its proper divisors (23382997).

242420123 is a wasteful number, since it uses less digits than its factorization.

242420123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112077.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 242420123 is about 15569.8465952623. The cubic root of 242420123 is about 623.5283759291.

Adding to 242420123 its reverse (321024242), we get a palindrome (563444365).

The spelling of 242420123 in words is "two hundred forty-two million, four hundred twenty thousand, one hundred twenty-three".