231230330249 has 2 divisors, whose sum is σ = 231230330250. Its totient is φ = 231230330248.

The previous prime is 231230330231. The next prime is 231230330369. The reversal of 231230330249 is 942033032132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225784628224 + 5445702025 = 475168^2 + 73795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231230330249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (231230330209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115615165124 + 115615165125.

It is an arithmetic number, because the mean of its divisors is an integer number (115615165125).

Almost surely, 2^231230330249 is an apocalyptic number.

It is an amenable number.

231230330249 is a deficient number, since it is larger than the sum of its proper divisors (1).

231230330249 is an equidigital number, since it uses as much as digits as its factorization.

231230330249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 32.

The spelling of 231230330249 in words is "two hundred thirty-one billion, two hundred thirty million, three hundred thirty thousand, two hundred forty-nine".