102102201017 has 2 divisors, whose sum is σ = 102102201018. Its totient is φ = 102102201016.

The previous prime is 102102201011. The next prime is 102102201029. The reversal of 102102201017 is 710102201201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64141134121 + 37961066896 = 253261^2 + 194836^2 .

It is an emirp because it is prime and its reverse (710102201201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102102201017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102102200986 and 102102201004.

It is not a weakly prime, because it can be changed into another prime (102102201011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051100508 + 51051100509.

It is an arithmetic number, because the mean of its divisors is an integer number (51051100509).

Almost surely, 2^102102201017 is an apocalyptic number.

It is an amenable number.

102102201017 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102201017 is an equidigital number, since it uses as much as digits as its factorization.

102102201017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 102102201017 its reverse (710102201201), we get a palindrome (812204402218).

The spelling of 102102201017 in words is "one hundred two billion, one hundred two million, two hundred one thousand, seventeen".