231423423223 has 2 divisors, whose sum is σ = 231423423224. Its totient is φ = 231423423222.

The previous prime is 231423423221. The next prime is 231423423263. The reversal of 231423423223 is 322324324132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231423423223 - 2¹ = 231423423221 is a prime.

Together with 231423423221, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231423423221) 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 as a sum of consecutive naturals, namely, 115711711611 + 115711711612.

It is an arithmetic number, because the mean of its divisors is an integer number (115711711612).

Almost surely, 2^231423423223 is an apocalyptic number.

231423423223 is a deficient number, since it is larger than the sum of its proper divisors (1).

231423423223 is an equidigital number, since it uses as much as digits as its factorization.

231423423223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 31.

Adding to 231423423223 its reverse (322324324132), we get a palindrome (553747747355).

Subtracting 231423423223 from its reverse (322324324132), we obtain a palindrome (90900900909).

The spelling of 231423423223 in words is "two hundred thirty-one billion, four hundred twenty-three million, four hundred twenty-three thousand, two hundred twenty-three".