30103009 has 2 divisors, whose sum is σ = 30103010. Its totient is φ = 30103008.

The previous prime is 30103001. The next prime is 30103019. The reversal of 30103009 is 90030103.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15776784 + 14326225 = 3972^2 + 3785^2 .

It is a cyclic number.

It is not a de Polignac number, because 30103009 - 2³ = 30103001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30102983 and 30103001.

It is not a weakly prime, because it can be changed into another prime (30103001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15051504 + 15051505.

It is an arithmetic number, because the mean of its divisors is an integer number (15051505).

Almost surely, 2^30103009 is an apocalyptic number.

It is an amenable number.

30103009 is a deficient number, since it is larger than the sum of its proper divisors (1).

30103009 is an equidigital number, since it uses as much as digits as its factorization.

30103009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 30103009 is about 5486.6209090842. The cubic root of 30103009 is about 311.0784808984.

The spelling of 30103009 in words is "thirty million, one hundred three thousand, nine".