10203321001 has 12 divisors (see below), whose sum is σ = 10878901120. Its totient is φ = 9567616320.

The previous prime is 10203320999. The next prime is 10203321047. The reversal of 10203321001 is 10012330201.

It is not a de Polignac number, because 10203321001 - 2¹ = 10203320999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10203321061) 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 11 ways as a sum of consecutive naturals, for example, 13180 + ... + 143458.

Almost surely, 2^10203321001 is an apocalyptic number.

It is an amenable number.

10203321001 is a deficient number, since it is larger than the sum of its proper divisors (675580119).

10203321001 is a wasteful number, since it uses less digits than its factorization.

10203321001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130584 (or 130567 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 10203321001 its reverse (10012330201), we get a palindrome (20215651202).

The spelling of 10203321001 in words is "ten billion, two hundred three million, three hundred twenty-one thousand, one".