231042113121 has 32 divisors (see below), whose sum is σ = 323561779200. Its totient is φ = 146452069440.

The previous prime is 231042113119. The next prime is 231042113149. The reversal of 231042113121 is 121311240132.

It is not a de Polignac number, because 231042113121 - 2¹ = 231042113119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231042113101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10848135 + ... + 10869411.

It is an arithmetic number, because the mean of its divisors is an integer number (10111305600).

Almost surely, 2^231042113121 is an apocalyptic number.

It is an amenable number.

231042113121 is a deficient number, since it is larger than the sum of its proper divisors (92519666079).

231042113121 is a wasteful number, since it uses less digits than its factorization.

231042113121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23349.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 231042113121 its reverse (121311240132), we get a palindrome (352353353253).

The spelling of 231042113121 in words is "two hundred thirty-one billion, forty-two million, one hundred thirteen thousand, one hundred twenty-one".