231223203122313 has 16 divisors (see below), whose sum is σ = 308731543018496. Its totient is φ = 153931970816640.

The previous prime is 231223203122311. The next prime is 231223203122459. The reversal of 231223203122313 is 313221302322132.

It is not a de Polignac number, because 231223203122313 - 2¹ = 231223203122311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231223203122311) 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, 10573948 + ... + 23963613.

It is an arithmetic number, because the mean of its divisors is an integer number (19295721438656).

Almost surely, 2^{231223203122313} is an apocalyptic number.

It is an amenable number.

231223203122313 is a deficient number, since it is larger than the sum of its proper divisors (77508339896183).

231223203122313 is a wasteful number, since it uses less digits than its factorization.

231223203122313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34540704.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 231223203122313 its reverse (313221302322132), we get a palindrome (544444505444445).

The spelling of 231223203122313 in words is "two hundred thirty-one trillion, two hundred twenty-three billion, two hundred three million, one hundred twenty-two thousand, three hundred thirteen".