231344210231 has 4 divisors (see below), whose sum is σ = 235265298600. Its totient is φ = 227423121864.

The previous prime is 231344210161. The next prime is 231344210243. The reversal of 231344210231 is 132012443132.

231344210231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231344210231 is a prime.

It is a super-2 number, since 2×231344210231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231344210231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231344210131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1960544096 + ... + 1960544213.

It is an arithmetic number, because the mean of its divisors is an integer number (58816324650).

Almost surely, 2^231344210231 is an apocalyptic number.

231344210231 is a deficient number, since it is larger than the sum of its proper divisors (3921088369).

231344210231 is an equidigital number, since it uses as much as digits as its factorization.

231344210231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3921088368.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 231344210231 its reverse (132012443132), we get a palindrome (363356653363).

The spelling of 231344210231 in words is "two hundred thirty-one billion, three hundred forty-four million, two hundred ten thousand, two hundred thirty-one".