1020202005103 has 2 divisors, whose sum is σ = 1020202005104. Its totient is φ = 1020202005102.

The previous prime is 1020202005083. The next prime is 1020202005167. The reversal of 1020202005103 is 3015002020201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020202005103 - 2³⁷ = 882763051631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020202003103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510101002551 + 510101002552.

It is an arithmetic number, because the mean of its divisors is an integer number (510101002552).

Almost surely, 2^{1020202005103} is an apocalyptic number.

1020202005103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020202005103 is an equidigital number, since it uses as much as digits as its factorization.

1020202005103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 1020202005103 its reverse (3015002020201), we get a palindrome (4035204025304).

The spelling of 1020202005103 in words is "one trillion, twenty billion, two hundred two million, five thousand, one hundred three".