102102220243 has 2 divisors, whose sum is σ = 102102220244. Its totient is φ = 102102220242.

The previous prime is 102102220237. The next prime is 102102220247. The reversal of 102102220243 is 342022201201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102102220243 - 2⁵ = 102102220211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102102220243.

It is not a weakly prime, because it can be changed into another prime (102102220247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051110121 + 51051110122.

It is an arithmetic number, because the mean of its divisors is an integer number (51051110122).

Almost surely, 2^102102220243 is an apocalyptic number.

102102220243 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102220243 is an equidigital number, since it uses as much as digits as its factorization.

102102220243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 102102220243 its reverse (342022201201), we get a palindrome (444124421444).

The spelling of 102102220243 in words is "one hundred two billion, one hundred two million, two hundred twenty thousand, two hundred forty-three".