10020003 has 16 divisors (see below), whose sum is σ = 15429120. Its totient is φ = 5665536.

The previous prime is 10019983. The next prime is 10020013. The reversal of 10020003 is 30002001.

It is not a de Polignac number, because 10020003 - 2⁶ = 10019939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10019973 and 10020000.

It is not an unprimeable number, because it can be changed into a prime (10020013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423 + ... + 4496.

It is an arithmetic number, because the mean of its divisors is an integer number (964320).

Almost surely, 2^10020003 is an apocalyptic number.

10020003 is a deficient number, since it is larger than the sum of its proper divisors (5409117).

10020003 is an equidigital number, since it uses as much as digits as its factorization.

10020003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5026.

The product of its (nonzero) digits is 6, while the sum is 6.

The square root of 10020003 is about 3165.4388321369. The cubic root of 10020003 is about 215.5870238518.

Adding to 10020003 its reverse (30002001), we get a palindrome (40022004).

The spelling of 10020003 in words is "ten million, twenty thousand, three".