230312389 has 2 divisors, whose sum is σ = 230312390. Its totient is φ = 230312388.

The previous prime is 230312371. The next prime is 230312431. The reversal of 230312389 is 983213032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223263364 + 7049025 = 14942^2 + 2655^2 .

It is a cyclic number.

It is not a de Polignac number, because 230312389 - 2⁷ = 230312261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230312389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230312339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115156194 + 115156195.

It is an arithmetic number, because the mean of its divisors is an integer number (115156195).

Almost surely, 2^230312389 is an apocalyptic number.

It is an amenable number.

230312389 is a deficient number, since it is larger than the sum of its proper divisors (1).

230312389 is an equidigital number, since it uses as much as digits as its factorization.

230312389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 230312389 is about 15176.0465536977. The cubic root of 230312389 is about 612.9698310453.

The spelling of 230312389 in words is "two hundred thirty million, three hundred twelve thousand, three hundred eighty-nine".