231531503114423 has 4 divisors (see below), whose sum is σ = 231531537483480. Its totient is φ = 231531468745368.

The previous prime is 231531503114399. The next prime is 231531503114441. The reversal of 231531503114423 is 324411305135132.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 231531503114423 - 2⁸ = 231531503114167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231531503614423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3386765 + ... + 21783782.

It is an arithmetic number, because the mean of its divisors is an integer number (57882884370870).

Almost surely, 2^{231531503114423} is an apocalyptic number.

231531503114423 is a deficient number, since it is larger than the sum of its proper divisors (34369057).

231531503114423 is an equidigital number, since it uses as much as digits as its factorization.

231531503114423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34369056.

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 231531503114423 its reverse (324411305135132), we get a palindrome (555942808249555).

The spelling of 231531503114423 in words is "two hundred thirty-one trillion, five hundred thirty-one billion, five hundred three million, one hundred fourteen thousand, four hundred twenty-three".