102643357093 has 2 divisors, whose sum is σ = 102643357094. Its totient is φ = 102643357092.

The previous prime is 102643357073. The next prime is 102643357123. The reversal of 102643357093 is 390753346201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102606183684 + 37173409 = 320322^2 + 6097^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102643357093 is a prime.

It is a super-2 number, since 2×102643357093² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102643357013) 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, 51321678546 + 51321678547.

It is an arithmetic number, because the mean of its divisors is an integer number (51321678547).

Almost surely, 2^102643357093 is an apocalyptic number.

It is an amenable number.

102643357093 is a deficient number, since it is larger than the sum of its proper divisors (1).

102643357093 is an equidigital number, since it uses as much as digits as its factorization.

102643357093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 43.

The spelling of 102643357093 in words is "one hundred two billion, six hundred forty-three million, three hundred fifty-seven thousand, ninety-three".