231201021232231 has 8 divisors (see below), whose sum is σ = 231422730212304. Its totient is φ = 230979315537600.

The previous prime is 231201021232213. The next prime is 231201021232397. The reversal of 231201021232231 is 132232120102132.

231201021232231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 231201021232231 - 2¹³ = 231201021224039 is a prime.

It is a super-2 number, since 2×231201021232231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231201021232196 and 231201021232205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231201021032231) 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, 153956811 + ... + 155451283.

It is an arithmetic number, because the mean of its divisors is an integer number (28927841276538).

Almost surely, 2^{231201021232231} is an apocalyptic number.

231201021232231 is a deficient number, since it is larger than the sum of its proper divisors (221708980073).

231201021232231 is a wasteful number, since it uses less digits than its factorization.

231201021232231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642721.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 231201021232231 its reverse (132232120102132), we get a palindrome (363433141334363).

The spelling of 231201021232231 in words is "two hundred thirty-one trillion, two hundred one billion, twenty-one million, two hundred thirty-two thousand, two hundred thirty-one".