20020103 has 2 divisors, whose sum is σ = 20020104. Its totient is φ = 20020102.

The previous prime is 20020093. The next prime is 20020109. The reversal of 20020103 is 30102002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20020103 - 2¹⁴ = 20003719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010051 + 10010052.

It is an arithmetic number, because the mean of its divisors is an integer number (10010052).

Almost surely, 2^20020103 is an apocalyptic number.

20020103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020103 is an equidigital number, since it uses as much as digits as its factorization.

20020103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 20020103 is about 4474.3829742211. The cubic root of 20020103 is about 271.5326777671.

Adding to 20020103 its reverse (30102002), we get a palindrome (50122105).

The spelling of 20020103 in words is "twenty million, twenty thousand, one hundred three".