231223211323 has 16 divisors (see below), whose sum is σ = 263395540800. Its totient is φ = 201360259584.

The previous prime is 231223211291. The next prime is 231223211333. The reversal of 231223211323 is 323112322132.

It is a cyclic number.

It is not a de Polignac number, because 231223211323 - 2⁵ = 231223211291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231223211333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5274898 + ... + 5318551.

It is an arithmetic number, because the mean of its divisors is an integer number (16462221300).

Almost surely, 2^231223211323 is an apocalyptic number.

231223211323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

231223211323 is a deficient number, since it is larger than the sum of its proper divisors (32172329477).

231223211323 is a wasteful number, since it uses less digits than its factorization.

231223211323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10593558.

The product of its digits is 2592, while the sum is 25.

Adding to 231223211323 its reverse (323112322132), we get a palindrome (554335533455).

The spelling of 231223211323 in words is "two hundred thirty-one billion, two hundred twenty-three million, two hundred eleven thousand, three hundred twenty-three".