242431121021 has 8 divisors (see below), whose sum is σ = 248144349024. Its totient is φ = 236721315600.

The previous prime is 242431121003. The next prime is 242431121027. The reversal of 242431121021 is 120121134242.

242431121021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 242431121021 - 2²⁶ = 242364012157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242431121027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712031 + ... + 995916.

It is an arithmetic number, because the mean of its divisors is an integer number (31018043628).

Almost surely, 2^242431121021 is an apocalyptic number.

It is an amenable number.

242431121021 is a deficient number, since it is larger than the sum of its proper divisors (5713228003).

242431121021 is a wasteful number, since it uses less digits than its factorization.

242431121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711291.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 242431121021 its reverse (120121134242), we get a palindrome (362552255263).

The spelling of 242431121021 in words is "two hundred forty-two billion, four hundred thirty-one million, one hundred twenty-one thousand, twenty-one".