231031423244121 has 8 divisors (see below), whose sum is σ = 310767932151840. Its totient is φ = 152657931582912.

The previous prime is 231031423244119. The next prime is 231031423244129. The reversal of 231031423244121 is 121442324130132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231031423244121 - 2¹ = 231031423244119 is a prime.

It is a super-2 number, since 2×231031423244121² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231031423244129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340754311231 + ... + 340754311908.

It is an arithmetic number, because the mean of its divisors is an integer number (38845991518980).

Almost surely, 2^{231031423244121} is an apocalyptic number.

It is an amenable number.

231031423244121 is a deficient number, since it is larger than the sum of its proper divisors (79736508907719).

231031423244121 is a wasteful number, since it uses less digits than its factorization.

231031423244121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681508623255.

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 231031423244121 its reverse (121442324130132), we get a palindrome (352473747374253).

The spelling of 231031423244121 in words is "two hundred thirty-one trillion, thirty-one billion, four hundred twenty-three million, two hundred forty-four thousand, one hundred twenty-one".