102305146247 has 2 divisors, whose sum is σ = 102305146248. Its totient is φ = 102305146246.

The previous prime is 102305146219. The next prime is 102305146249. The reversal of 102305146247 is 742641503201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102305146247 - 2⁶ = 102305146183 is a prime.

Together with 102305146249, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102305146249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51152573123 + 51152573124.

It is an arithmetic number, because the mean of its divisors is an integer number (51152573124).

Almost surely, 2^102305146247 is an apocalyptic number.

102305146247 is a deficient number, since it is larger than the sum of its proper divisors (1).

102305146247 is an equidigital number, since it uses as much as digits as its factorization.

102305146247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 102305146247 its reverse (742641503201), we get a palindrome (844946649448).

The spelling of 102305146247 in words is "one hundred two billion, three hundred five million, one hundred forty-six thousand, two hundred forty-seven".