102130021193 has 2 divisors, whose sum is σ = 102130021194. Its totient is φ = 102130021192.

The previous prime is 102130021183. The next prime is 102130021243. The reversal of 102130021193 is 391120031201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102113480704 + 16540489 = 319552^2 + 4067^2 .

It is a cyclic number.

It is not a de Polignac number, because 102130021193 - 2⁶ = 102130021129 is a prime.

It is not a weakly prime, because it can be changed into another prime (102130021183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51065010596 + 51065010597.

It is an arithmetic number, because the mean of its divisors is an integer number (51065010597).

Almost surely, 2^102130021193 is an apocalyptic number.

It is an amenable number.

102130021193 is a deficient number, since it is larger than the sum of its proper divisors (1).

102130021193 is an equidigital number, since it uses as much as digits as its factorization.

102130021193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 102130021193 its reverse (391120031201), we get a palindrome (493250052394).

The spelling of 102130021193 in words is "one hundred two billion, one hundred thirty million, twenty-one thousand, one hundred ninety-three".