20102003 has 2 divisors, whose sum is σ = 20102004. Its totient is φ = 20102002.

The previous prime is 20101997. The next prime is 20102009. The reversal of 20102003 is 30020102.

It is a balanced prime because it is at equal distance from previous prime (20101997) and next prime (20102009).

It is a cyclic number.

It is not a de Polignac number, because 20102003 - 2¹² = 20097907 is a prime.

It is a super-2 number, since 2×20102003² = 808181049224018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20102009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051001 + 10051002.

It is an arithmetic number, because the mean of its divisors is an integer number (10051002).

Almost surely, 2^20102003 is an apocalyptic number.

20102003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102003 is an equidigital number, since it uses as much as digits as its factorization.

20102003 is an odious number, because the sum of its binary digits is odd.

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

The square root of 20102003 is about 4483.5257331703. The cubic root of 20102003 is about 271.9024439289.

Adding to 20102003 its reverse (30020102), we get a palindrome (50122105).

The spelling of 20102003 in words is "twenty million, one hundred two thousand, three".