234042043140121 has 4 divisors (see below), whose sum is σ = 234042668805412. Its totient is φ = 234041417474832.

The previous prime is 234042043140119. The next prime is 234042043140151. The reversal of 234042043140121 is 121041340240432.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 107103063581721 + 126938979558400 = 10349061^2 + 11266720^2 .

It is a cyclic number.

It is not a de Polignac number, because 234042043140121 - 2¹ = 234042043140119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234042043140151) 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 3 ways as a sum of consecutive naturals, for example, 312271206 + ... + 313019791.

It is an arithmetic number, because the mean of its divisors is an integer number (58510667201353).

Almost surely, 2^{234042043140121} is an apocalyptic number.

It is an amenable number.

234042043140121 is a deficient number, since it is larger than the sum of its proper divisors (625665291).

234042043140121 is an equidigital number, since it uses as much as digits as its factorization.

234042043140121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625665290.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 234042043140121 its reverse (121041340240432), we get a palindrome (355083383380553).

The spelling of 234042043140121 in words is "two hundred thirty-four trillion, forty-two billion, forty-three million, one hundred forty thousand, one hundred twenty-one".