231231323 has 2 divisors, whose sum is σ = 231231324. Its totient is φ = 231231322.

The previous prime is 231231293. The next prime is 231231337. The reversal of 231231323 is 323132132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231231323 - 2¹⁴ = 231214939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231231295 and 231231304.

It is not a weakly prime, because it can be changed into another prime (231231353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115615661 + 115615662.

It is an arithmetic number, because the mean of its divisors is an integer number (115615662).

Almost surely, 2^231231323 is an apocalyptic number.

231231323 is a deficient number, since it is larger than the sum of its proper divisors (1).

231231323 is an equidigital number, since it uses as much as digits as its factorization.

231231323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 20.

The square root of 231231323 is about 15206.2922173684. The cubic root of 231231323 is about 613.7839880354.

Adding to 231231323 its reverse (323132132), we get a palindrome (554363455).

The spelling of 231231323 in words is "two hundred thirty-one million, two hundred thirty-one thousand, three hundred twenty-three".