231341424121 has 4 divisors (see below), whose sum is σ = 231657033892. Its totient is φ = 231025814352.

The previous prime is 231341424109. The next prime is 231341424161. The reversal of 231341424121 is 121424143132.

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 167228652096 + 64112772025 = 408936^2 + 253205^2 .

It is a cyclic number.

It is not a de Polignac number, because 231341424121 - 2⁵ = 231341424089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231341424121.

It is not an unprimeable number, because it can be changed into a prime (231341424161) 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, 157803786 + ... + 157805251.

It is an arithmetic number, because the mean of its divisors is an integer number (57914258473).

Almost surely, 2^231341424121 is an apocalyptic number.

It is an amenable number.

231341424121 is a deficient number, since it is larger than the sum of its proper divisors (315609771).

231341424121 is an equidigital number, since it uses as much as digits as its factorization.

231341424121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315609770.

The product of its digits is 4608, while the sum is 28.

Adding to 231341424121 its reverse (121424143132), we get a palindrome (352765567253).

The spelling of 231341424121 in words is "two hundred thirty-one billion, three hundred forty-one million, four hundred twenty-four thousand, one hundred twenty-one".