20000000003 has 4 divisors (see below), whose sum is σ = 20253164640. Its totient is φ = 19746835368.

The previous prime is 19999999967. The next prime is 20000000089. The reversal of 20000000003 is 30000000002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20000000003 - 2⁶ = 19999999939 is a prime.

It is a Duffinian number.

20000000003 is a modest number, since divided by 3 gives 2 as remainder.

It is not an unprimeable number, because it can be changed into a prime (20000000803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126582200 + ... + 126582357.

It is an arithmetic number, because the mean of its divisors is an integer number (5063291160).

Almost surely, 2^20000000003 is an apocalyptic number.

20000000003 is a deficient number, since it is larger than the sum of its proper divisors (253164637).

20000000003 is an equidigital number, since it uses as much as digits as its factorization.

20000000003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253164636.

The product of its (nonzero) digits is 6, while the sum is 5.

Adding to 20000000003 its reverse (30000000002), we get a palindrome (50000000005).

Subtracting 20000000003 from its reverse (30000000002), we obtain a palindrome (9999999999).

The spelling of 20000000003 in words is "twenty billion, three", and thus it is an aban number and an uban number.