102020020103 has 2 divisors, whose sum is σ = 102020020104. Its totient is φ = 102020020102.

The previous prime is 102020020087. The next prime is 102020020133. The reversal of 102020020103 is 301020020201.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (301020020201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102020020103 - 2⁴ = 102020020087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102020020133) 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, 51010010051 + 51010010052.

It is an arithmetic number, because the mean of its divisors is an integer number (51010010052).

Almost surely, 2^102020020103 is an apocalyptic number.

102020020103 is a deficient number, since it is larger than the sum of its proper divisors (1).

102020020103 is an equidigital number, since it uses as much as digits as its factorization.

102020020103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 102020020103 its reverse (301020020201), we get a palindrome (403040040304).

The spelling of 102020020103 in words is "one hundred two billion, twenty million, twenty thousand, one hundred three".