30103221 has 4 divisors (see below), whose sum is σ = 40137632. Its totient is φ = 20068812.

The previous prime is 30103217. The next prime is 30103231. The reversal of 30103221 is 12230103.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30103221 - 2² = 30103217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30103197 and 30103206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30103231) 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, 5017201 + ... + 5017206.

It is an arithmetic number, because the mean of its divisors is an integer number (10034408).

Almost surely, 2^30103221 is an apocalyptic number.

It is an amenable number.

30103221 is a deficient number, since it is larger than the sum of its proper divisors (10034411).

30103221 is a wasteful number, since it uses less digits than its factorization.

30103221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10034410.

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

The square root of 30103221 is about 5486.6402287739. The cubic root of 30103221 is about 311.0792111519.

Adding to 30103221 its reverse (12230103), we get a palindrome (42333324).

The spelling of 30103221 in words is "thirty million, one hundred three thousand, two hundred twenty-one".