102143885377 has 2 divisors, whose sum is σ = 102143885378. Its totient is φ = 102143885376.

The previous prime is 102143885329. The next prime is 102143885419. The reversal of 102143885377 is 773588341201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95338295361 + 6805590016 = 308769^2 + 82496^2 .

It is a cyclic number.

It is not a de Polignac number, because 102143885377 - 2¹¹ = 102143883329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102143885377.

It is not a weakly prime, because it can be changed into another prime (102143885777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51071942688 + 51071942689.

It is an arithmetic number, because the mean of its divisors is an integer number (51071942689).

Almost surely, 2^102143885377 is an apocalyptic number.

It is an amenable number.

102143885377 is a deficient number, since it is larger than the sum of its proper divisors (1).

102143885377 is an equidigital number, since it uses as much as digits as its factorization.

102143885377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 102143885377 in words is "one hundred two billion, one hundred forty-three million, eight hundred eighty-five thousand, three hundred seventy-seven".