230155742317 has 2 divisors, whose sum is σ = 230155742318. Its totient is φ = 230155742316.

The previous prime is 230155742291. The next prime is 230155742329. The reversal of 230155742317 is 713247551032.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203454221481 + 26701520836 = 451059^2 + 163406^2 .

It is a cyclic number.

It is not a de Polignac number, because 230155742317 - 2⁷ = 230155742189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230155742317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230155742917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115077871158 + 115077871159.

It is an arithmetic number, because the mean of its divisors is an integer number (115077871159).

Almost surely, 2^230155742317 is an apocalyptic number.

It is an amenable number.

230155742317 is a deficient number, since it is larger than the sum of its proper divisors (1).

230155742317 is an equidigital number, since it uses as much as digits as its factorization.

230155742317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 230155742317 in words is "two hundred thirty billion, one hundred fifty-five million, seven hundred forty-two thousand, three hundred seventeen".