231013120121121 has 16 divisors (see below), whose sum is σ = 343149462250560. Its totient is φ = 137259784898880.

The previous prime is 231013120121059. The next prime is 231013120121177. The reversal of 231013120121121 is 121121021310132.

It is not a de Polignac number, because 231013120121121 - 2⁶ = 231013120121057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231013120121821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102127815015 + ... + 102127817276.

It is an arithmetic number, because the mean of its divisors is an integer number (21446841390660).

Almost surely, 2^{231013120121121} is an apocalyptic number.

It is an amenable number.

231013120121121 is a deficient number, since it is larger than the sum of its proper divisors (112136342129439).

231013120121121 is a wasteful number, since it uses less digits than its factorization.

231013120121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204255632336.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 231013120121121 its reverse (121121021310132), we get a palindrome (352134141431253).

The spelling of 231013120121121 in words is "two hundred thirty-one trillion, thirteen billion, one hundred twenty million, one hundred twenty-one thousand, one hundred twenty-one".