102011102161 has 2 divisors, whose sum is σ = 102011102162. Its totient is φ = 102011102160.

The previous prime is 102011102143. The next prime is 102011102191. The reversal of 102011102161 is 161201110201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86689613761 + 15321488400 = 294431^2 + 123780^2 .

It is an emirp because it is prime and its reverse (161201110201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102011102161 - 2⁹ = 102011101649 is a prime.

It is not a weakly prime, because it can be changed into another prime (102011102111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51005551080 + 51005551081.

It is an arithmetic number, because the mean of its divisors is an integer number (51005551081).

Almost surely, 2^102011102161 is an apocalyptic number.

It is an amenable number.

102011102161 is a deficient number, since it is larger than the sum of its proper divisors (1).

102011102161 is an equidigital number, since it uses as much as digits as its factorization.

102011102161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 102011102161 its reverse (161201110201), we get a palindrome (263212212362).

The spelling of 102011102161 in words is "one hundred two billion, eleven million, one hundred two thousand, one hundred sixty-one".