242431405121 has 4 divisors (see below), whose sum is σ = 242432410032. Its totient is φ = 242430400212.

The previous prime is 242431405081. The next prime is 242431405129. The reversal of 242431405121 is 121504134242.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 242431405121 - 2⁶ = 242431405057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242431405129) 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, 101006 + ... + 703608.

It is an arithmetic number, because the mean of its divisors is an integer number (60608102508).

Almost surely, 2^242431405121 is an apocalyptic number.

It is an amenable number.

242431405121 is a deficient number, since it is larger than the sum of its proper divisors (1004911).

242431405121 is an equidigital number, since it uses as much as digits as its factorization.

242431405121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004910.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 242431405121 its reverse (121504134242), we get a palindrome (363935539363).

The spelling of 242431405121 in words is "two hundred forty-two billion, four hundred thirty-one million, four hundred five thousand, one hundred twenty-one".