20210010003 has 16 divisors (see below), whose sum is σ = 31516585600. Its totient is φ = 12764216520.

The previous prime is 20210009983. The next prime is 20210010053. The reversal of 20210010003 is 30001001202.

It is a happy number.

It is not a de Polignac number, because 20210010003 - 2²⁶ = 20142901139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20210010053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19697353 + ... + 19698378.

It is an arithmetic number, because the mean of its divisors is an integer number (1969786600).

Almost surely, 2^20210010003 is an apocalyptic number.

20210010003 is a deficient number, since it is larger than the sum of its proper divisors (11306575597).

20210010003 is a wasteful number, since it uses less digits than its factorization.

20210010003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39395759 (or 39395753 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 20210010003 its reverse (30001001202), we get a palindrome (50211011205).

The spelling of 20210010003 in words is "twenty billion, two hundred ten million, ten thousand, three".