102102012211193 has 2 divisors, whose sum is σ = 102102012211194. Its totient is φ = 102102012211192.

The previous prime is 102102012211189. The next prime is 102102012211229. The reversal of 102102012211193 is 391112210201201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52562543500009 + 49539468711184 = 7250003^2 + 7038428^2 .

It is a cyclic number.

It is not a de Polignac number, because 102102012211193 - 2² = 102102012211189 is a prime.

It is not a weakly prime, because it can be changed into another prime (102102012211993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051006105596 + 51051006105597.

It is an arithmetic number, because the mean of its divisors is an integer number (51051006105597).

Almost surely, 2^{102102012211193} is an apocalyptic number.

It is an amenable number.

102102012211193 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102012211193 is an equidigital number, since it uses as much as digits as its factorization.

102102012211193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 26.

Adding to 102102012211193 its reverse (391112210201201), we get a palindrome (493214222412394).

The spelling of 102102012211193 in words is "one hundred two trillion, one hundred two billion, twelve million, two hundred eleven thousand, one hundred ninety-three".