231314311 has 2 divisors, whose sum is σ = 231314312. Its totient is φ = 231314310.

The previous prime is 231314273. The next prime is 231314327. The reversal of 231314311 is 113413132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231314311 - 2⁷ = 231314183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231314011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115657155 + 115657156.

It is an arithmetic number, because the mean of its divisors is an integer number (115657156).

Almost surely, 2^231314311 is an apocalyptic number.

231314311 is a deficient number, since it is larger than the sum of its proper divisors (1).

231314311 is an equidigital number, since it uses as much as digits as its factorization.

231314311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 19.

The square root of 231314311 is about 15209.0207114068. The cubic root of 231314311 is about 613.8574074616.

Adding to 231314311 its reverse (113413132), we get a palindrome (344727443).

The spelling of 231314311 in words is "two hundred thirty-one million, three hundred fourteen thousand, three hundred eleven".