102124847989 has 2 divisors, whose sum is σ = 102124847990. Its totient is φ = 102124847988.

The previous prime is 102124847977. The next prime is 102124848031. The reversal of 102124847989 is 989748421201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101230239889 + 894608100 = 318167^2 + 29910^2 .

It is an emirp because it is prime and its reverse (989748421201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102124847989 - 2²³ = 102116459381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102124847939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51062423994 + 51062423995.

It is an arithmetic number, because the mean of its divisors is an integer number (51062423995).

Almost surely, 2^102124847989 is an apocalyptic number.

It is an amenable number.

102124847989 is a deficient number, since it is larger than the sum of its proper divisors (1).

102124847989 is an equidigital number, since it uses as much as digits as its factorization.

102124847989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 102124847989 in words is "one hundred two billion, one hundred twenty-four million, eight hundred forty-seven thousand, nine hundred eighty-nine".