102030123317 has 2 divisors, whose sum is σ = 102030123318. Its totient is φ = 102030123316.

The previous prime is 102030123311. The next prime is 102030123319. The reversal of 102030123317 is 713321030201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74471135236 + 27558988081 = 272894^2 + 166009^2 .

It is a cyclic number.

It is not a de Polignac number, because 102030123317 - 2⁴ = 102030123301 is a prime.

Together with 102030123319, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 102030123292 and 102030123301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102030123311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51015061658 + 51015061659.

It is an arithmetic number, because the mean of its divisors is an integer number (51015061659).

Almost surely, 2^102030123317 is an apocalyptic number.

It is an amenable number.

102030123317 is a deficient number, since it is larger than the sum of its proper divisors (1).

102030123317 is an equidigital number, since it uses as much as digits as its factorization.

102030123317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 23.

Adding to 102030123317 its reverse (713321030201), we get a palindrome (815351153518).

The spelling of 102030123317 in words is "one hundred two billion, thirty million, one hundred twenty-three thousand, three hundred seventeen".