20130103321 has 4 divisors (see below), whose sum is σ = 20134926772. Its totient is φ = 20125279872.

The previous prime is 20130103303. The next prime is 20130103351. The reversal of 20130103321 is 12330103102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18567877696 + 1562225625 = 136264^2 + 39525^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130103321 - 2¹¹ = 20130101273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20130103295 and 20130103304.

It is not an unprimeable number, because it can be changed into a prime (20130103351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2405460 + ... + 2413813.

It is an arithmetic number, because the mean of its divisors is an integer number (5033731693).

Almost surely, 2^20130103321 is an apocalyptic number.

It is an amenable number.

20130103321 is a deficient number, since it is larger than the sum of its proper divisors (4823451).

20130103321 is an equidigital number, since it uses as much as digits as its factorization.

20130103321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4823450.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20130103321 its reverse (12330103102), we get a palindrome (32460206423).

The spelling of 20130103321 in words is "twenty billion, one hundred thirty million, one hundred three thousand, three hundred twenty-one".