242403121 has 8 divisors (see below), whose sum is σ = 256233600. Its totient is φ = 228679920.

The previous prime is 242403113. The next prime is 242403127. The reversal of 242403121 is 121304242.

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 242403121 - 2³ = 242403113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242403127) 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, 22150 + ... + 31231.

It is an arithmetic number, because the mean of its divisors is an integer number (32029200).

Almost surely, 2^242403121 is an apocalyptic number.

It is an amenable number.

242403121 is a deficient number, since it is larger than the sum of its proper divisors (13830479).

242403121 is a wasteful number, since it uses less digits than its factorization.

242403121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53639.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 242403121 is about 15569.3005944390. The cubic root of 242403121 is about 623.5137986501.

Adding to 242403121 its reverse (121304242), we get a palindrome (363707363).

The spelling of 242403121 in words is "two hundred forty-two million, four hundred three thousand, one hundred twenty-one".