102301232009 has 2 divisors, whose sum is σ = 102301232010. Its totient is φ = 102301232008.

The previous prime is 102301231999. The next prime is 102301232071. The reversal of 102301232009 is 900232103201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81297976384 + 21003255625 = 285128^2 + 144925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102301232009 is a prime.

It is not a weakly prime, because it can be changed into another prime (102301231009) 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, 51150616004 + 51150616005.

It is an arithmetic number, because the mean of its divisors is an integer number (51150616005).

Almost surely, 2^102301232009 is an apocalyptic number.

It is an amenable number.

102301232009 is a deficient number, since it is larger than the sum of its proper divisors (1).

102301232009 is an equidigital number, since it uses as much as digits as its factorization.

102301232009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The spelling of 102301232009 in words is "one hundred two billion, three hundred one million, two hundred thirty-two thousand, nine".