243121114405 has 32 divisors (see below), whose sum is σ = 328007022336. Its totient is φ = 171646193664.

The previous prime is 243121114393. The next prime is 243121114409. The reversal of 243121114405 is 504411121342.

It is a happy number.

243121114405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 243121114405 - 2³¹ = 240973630757 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 (243121114409) 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 31 ways as a sum of consecutive naturals, for example, 3120454 + ... + 3197416.

It is an arithmetic number, because the mean of its divisors is an integer number (10250219448).

Almost surely, 2^243121114405 is an apocalyptic number.

It is an amenable number.

243121114405 is a deficient number, since it is larger than the sum of its proper divisors (84885907931).

243121114405 is a wasteful number, since it uses less digits than its factorization.

243121114405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79117.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 243121114405 its reverse (504411121342), we get a palindrome (747532235747).

The spelling of 243121114405 in words is "two hundred forty-three billion, one hundred twenty-one million, one hundred fourteen thousand, four hundred five".