231313121323 has 8 divisors (see below), whose sum is σ = 231555008048. Its totient is φ = 231071353344.

The previous prime is 231313121317. The next prime is 231313121387. The reversal of 231313121323 is 323121313132.

231313121323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231313121323 - 2³³ = 222723186731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231313121023) 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 7 ways as a sum of consecutive naturals, for example, 4173811 + ... + 4228867.

It is an arithmetic number, because the mean of its divisors is an integer number (28944376006).

Almost surely, 2^231313121323 is an apocalyptic number.

231313121323 is a deficient number, since it is larger than the sum of its proper divisors (241886725).

231313121323 is a wasteful number, since it uses less digits than its factorization.

231313121323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59373.

The product of its digits is 1944, while the sum is 25.

Adding to 231313121323 its reverse (323121313132), we get a palindrome (554434434455).

The spelling of 231313121323 in words is "two hundred thirty-one billion, three hundred thirteen million, one hundred twenty-one thousand, three hundred twenty-three".