231321331241 has 64 divisors (see below), whose sum is σ = 321575546880. Its totient is φ = 160507388160.

The previous prime is 231321331187. The next prime is 231321331273. The reversal of 231321331241 is 142133123132.

It is a happy number.

It is not a de Polignac number, because 231321331241 - 2¹⁸ = 231321069097 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 231321331241.

It is not an unprimeable number, because it can be changed into a prime (231321331441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42002210 + ... + 42007716.

It is an arithmetic number, because the mean of its divisors is an integer number (5024617920).

Almost surely, 2^231321331241 is an apocalyptic number.

It is an amenable number.

231321331241 is a deficient number, since it is larger than the sum of its proper divisors (90254215639).

231321331241 is a wasteful number, since it uses less digits than its factorization.

231321331241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7014.

The product of its digits is 2592, while the sum is 26.

Adding to 231321331241 its reverse (142133123132), we get a palindrome (373454454373).

The spelling of 231321331241 in words is "two hundred thirty-one billion, three hundred twenty-one million, three hundred thirty-one thousand, two hundred forty-one".