231230330231 has 2 divisors, whose sum is σ = 231230330232. Its totient is φ = 231230330230.

The previous prime is 231230330209. The next prime is 231230330249. The reversal of 231230330231 is 132033032132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231230330231 - 2⁶ = 231230330167 is a prime.

It is a super-2 number, since 2×231230330231² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 231230330197 and 231230330206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231230332231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115615165115 + 115615165116.

It is an arithmetic number, because the mean of its divisors is an integer number (115615165116).

Almost surely, 2^231230330231 is an apocalyptic number.

231230330231 is a deficient number, since it is larger than the sum of its proper divisors (1).

231230330231 is an equidigital number, since it uses as much as digits as its factorization.

231230330231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 231230330231 its reverse (132033032132), we get a palindrome (363263362363).

The spelling of 231230330231 in words is "two hundred thirty-one billion, two hundred thirty million, three hundred thirty thousand, two hundred thirty-one".