10000030321 has 6 divisors (see below), whose sum is σ = 10453718450. Its totient is φ = 9565245888.

The previous prime is 10000030291. The next prime is 10000030361. The reversal of 10000030321 is 12303000001.

It can be written as a sum of positive squares in only one way, i.e., 8025472225 + 1974558096 = 89585^2 + 44436^2 .

It is not a de Polignac number, because 10000030321 - 2¹⁷ = 9999899249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10000030298 and 10000030307.

It is not an unprimeable number, because it can be changed into a prime (10000030361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9451296 + ... + 9452353.

Almost surely, 2^10000030321 is an apocalyptic number.

It is an amenable number.

10000030321 is a deficient number, since it is larger than the sum of its proper divisors (453688129).

10000030321 is an equidigital number, since it uses as much as digits as its factorization.

10000030321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18903695 (or 18903672 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 10000030321 its reverse (12303000001), we get a palindrome (22303030322).

It can be divided in two parts, 100000 and 30321, that added together give a 4-th power (130321 = 19⁴).

The spelling of 10000030321 in words is "ten billion, thirty thousand, three hundred twenty-one".