102110010209 has 2 divisors, whose sum is σ = 102110010210. Its totient is φ = 102110010208.

The previous prime is 102110010193. The next prime is 102110010239. The reversal of 102110010209 is 902010011201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58158145600 + 43951864609 = 241160^2 + 209647^2 .

It is a cyclic number.

It is not a de Polignac number, because 102110010209 - 2⁴ = 102110010193 is a prime.

It is not a weakly prime, because it can be changed into another prime (102110010239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055005104 + 51055005105.

It is an arithmetic number, because the mean of its divisors is an integer number (51055005105).

Almost surely, 2^102110010209 is an apocalyptic number.

It is an amenable number.

102110010209 is a deficient number, since it is larger than the sum of its proper divisors (1).

102110010209 is an equidigital number, since it uses as much as digits as its factorization.

102110010209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 102110010209 in words is "one hundred two billion, one hundred ten million, ten thousand, two hundred nine".