102011123017 has 2 divisors, whose sum is σ = 102011123018. Its totient is φ = 102011123016.

The previous prime is 102011123009. The next prime is 102011123047. The reversal of 102011123017 is 710321110201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93064044096 + 8947078921 = 305064^2 + 94589^2 .

It is an emirp because it is prime and its reverse (710321110201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102011123017 - 2³ = 102011123009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102011122985 and 102011123003.

It is not a weakly prime, because it can be changed into another prime (102011123047) 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, 51005561508 + 51005561509.

It is an arithmetic number, because the mean of its divisors is an integer number (51005561509).

Almost surely, 2^102011123017 is an apocalyptic number.

It is an amenable number.

102011123017 is a deficient number, since it is larger than the sum of its proper divisors (1).

102011123017 is an equidigital number, since it uses as much as digits as its factorization.

102011123017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 19.

Adding to 102011123017 its reverse (710321110201), we get a palindrome (812332233218).

The spelling of 102011123017 in words is "one hundred two billion, eleven million, one hundred twenty-three thousand, seventeen".