231342514121 has 4 divisors (see below), whose sum is σ = 231363829200. Its totient is φ = 231321199044.

The previous prime is 231342514093. The next prime is 231342514147. The reversal of 231342514121 is 121415243132.

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.

It is a cyclic number.

It is not a de Polignac number, because 231342514121 - 2⁶ = 231342514057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231342511121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10641251 + ... + 10662968.

It is an arithmetic number, because the mean of its divisors is an integer number (57840957300).

Almost surely, 2^231342514121 is an apocalyptic number.

It is an amenable number.

231342514121 is a deficient number, since it is larger than the sum of its proper divisors (21315079).

231342514121 is a wasteful number, since it uses less digits than its factorization.

231342514121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21315078.

The product of its digits is 5760, while the sum is 29.

Adding to 231342514121 its reverse (121415243132), we get a palindrome (352757757253).

The spelling of 231342514121 in words is "two hundred thirty-one billion, three hundred forty-two million, five hundred fourteen thousand, one hundred twenty-one".