10321002003 has 16 divisors (see below), whose sum is σ = 14851934720. Its totient is φ = 6337656864.

The previous prime is 10321001987. The next prime is 10321002023. The reversal of 10321002003 is 30020012301.

It is a happy number.

It is not a de Polignac number, because 10321002003 - 2⁴ = 10321001987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10321002003.

It is not an unprimeable number, because it can be changed into a prime (10321002023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267733 + ... + 303846.

It is an arithmetic number, because the mean of its divisors is an integer number (928245920).

Almost surely, 2^10321002003 is an apocalyptic number.

10321002003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10321002003 is a deficient number, since it is larger than the sum of its proper divisors (4530932717).

10321002003 is a wasteful number, since it uses less digits than its factorization.

10321002003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572058.

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

Adding to 10321002003 its reverse (30020012301), we get a palindrome (40341014304).

The spelling of 10321002003 in words is "ten billion, three hundred twenty-one million, two thousand, three".