10020321003 has 96 divisors (see below), whose sum is σ = 17456643072. Its totient is φ = 5052801600.

The previous prime is 10020321001. The next prime is 10020321011. The reversal of 10020321003 is 30012302001.

It is a happy number.

It is not a de Polignac number, because 10020321003 - 2¹ = 10020321001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10020321003.

It is not an unprimeable number, because it can be changed into a prime (10020321001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14670700 + ... + 14671382.

It is an arithmetic number, because the mean of its divisors is an integer number (181840032).

Almost surely, 2^10020321003 is an apocalyptic number.

10020321003 is a deficient number, since it is larger than the sum of its proper divisors (7436322069).

10020321003 is a wasteful number, since it uses less digits than its factorization.

10020321003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965 (or 958 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 10020321003 its reverse (30012302001), we get a palindrome (40032623004).

The spelling of 10020321003 in words is "ten billion, twenty million, three hundred twenty-one thousand, three".