102143984609 has 2 divisors, whose sum is σ = 102143984610. Its totient is φ = 102143984608.

The previous prime is 102143984599. The next prime is 102143984639. The reversal of 102143984609 is 906489341201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79749760000 + 22394224609 = 282400^2 + 149647^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102143984609 is a prime.

It is not a weakly prime, because it can be changed into another prime (102143984639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51071992304 + 51071992305.

It is an arithmetic number, because the mean of its divisors is an integer number (51071992305).

Almost surely, 2^102143984609 is an apocalyptic number.

It is an amenable number.

102143984609 is a deficient number, since it is larger than the sum of its proper divisors (1).

102143984609 is an equidigital number, since it uses as much as digits as its factorization.

102143984609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 102143984609 in words is "one hundred two billion, one hundred forty-three million, nine hundred eighty-four thousand, six hundred nine".