231340027 has 2 divisors, whose sum is σ = 231340028. Its totient is φ = 231340026.

The previous prime is 231340009. The next prime is 231340033. The reversal of 231340027 is 720043132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231340027 is a prime.

It is not a weakly prime, because it can be changed into another prime (231340127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115670013 + 115670014.

It is an arithmetic number, because the mean of its divisors is an integer number (115670014).

Almost surely, 2^231340027 is an apocalyptic number.

231340027 is a deficient number, since it is larger than the sum of its proper divisors (1).

231340027 is an equidigital number, since it uses as much as digits as its factorization.

231340027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 231340027 is about 15209.8661072345. The cubic root of 231340027 is about 613.8801548251.

Adding to 231340027 its reverse (720043132), we get a palindrome (951383159).

The spelling of 231340027 in words is "two hundred thirty-one million, three hundred forty thousand, twenty-seven".