102102120021103 has 2 divisors, whose sum is σ = 102102120021104. Its totient is φ = 102102120021102.

The previous prime is 102102120021073. The next prime is 102102120021131. The reversal of 102102120021103 is 301120021201201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102102120021103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102102120021403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51051060010551 + 51051060010552.

It is an arithmetic number, because the mean of its divisors is an integer number (51051060010552).

Almost surely, 2^{102102120021103} is an apocalyptic number.

102102120021103 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102120021103 is an equidigital number, since it uses as much as digits as its factorization.

102102120021103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 102102120021103 its reverse (301120021201201), we get a palindrome (403222141222304).

The spelling of 102102120021103 in words is "one hundred two trillion, one hundred two billion, one hundred twenty million, twenty-one thousand, one hundred three".