10103021321 has 16 divisors (see below), whose sum is σ = 10379846400. Its totient is φ = 9830481408.

The previous prime is 10103021317. The next prime is 10103021329. The reversal of 10103021321 is 12312030101.

It is a cyclic number.

It is not a de Polignac number, because 10103021321 - 2² = 10103021317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10103021296 and 10103021305.

It is not an unprimeable number, because it can be changed into a prime (10103021329) 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 15 ways as a sum of consecutive naturals, for example, 2576000 + ... + 2579918.

It is an arithmetic number, because the mean of its divisors is an integer number (648740400).

Almost surely, 2^10103021321 is an apocalyptic number.

It is an amenable number.

10103021321 is a deficient number, since it is larger than the sum of its proper divisors (276825079).

10103021321 is a wasteful number, since it uses less digits than its factorization.

10103021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4448.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10103021321 its reverse (12312030101), we get a palindrome (22415051422).

The spelling of 10103021321 in words is "ten billion, one hundred three million, twenty-one thousand, three hundred twenty-one".