102301091909 has 2 divisors, whose sum is σ = 102301091910. Its totient is φ = 102301091908.

The previous prime is 102301091887. The next prime is 102301091917. The reversal of 102301091909 is 909190103201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72433648225 + 29867443684 = 269135^2 + 172822^2 .

It is a cyclic number.

It is not a de Polignac number, because 102301091909 - 2¹² = 102301087813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102301091939) 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, 51150545954 + 51150545955.

It is an arithmetic number, because the mean of its divisors is an integer number (51150545955).

Almost surely, 2^102301091909 is an apocalyptic number.

It is an amenable number.

102301091909 is a deficient number, since it is larger than the sum of its proper divisors (1).

102301091909 is an equidigital number, since it uses as much as digits as its factorization.

102301091909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 35.

The spelling of 102301091909 in words is "one hundred two billion, three hundred one million, ninety-one thousand, nine hundred nine".