231241231223 has 16 divisors (see below), whose sum is σ = 243814704480. Its totient is φ = 218708388864.

The previous prime is 231241231213. The next prime is 231241231229. The reversal of 231241231223 is 322132142132.

It is a cyclic number.

It is not a de Polignac number, because 231241231223 - 2¹² = 231241227127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231241231192 and 231241231201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231241231229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33838415 + ... + 33845247.

It is an arithmetic number, because the mean of its divisors is an integer number (15238419030).

Almost surely, 2^231241231223 is an apocalyptic number.

231241231223 is a deficient number, since it is larger than the sum of its proper divisors (12573473257).

231241231223 is a wasteful number, since it uses less digits than its factorization.

231241231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9538.

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

Adding to 231241231223 its reverse (322132142132), we get a palindrome (553373373355).

The spelling of 231241231223 in words is "two hundred thirty-one billion, two hundred forty-one million, two hundred thirty-one thousand, two hundred twenty-three".