30331109 has 2 divisors, whose sum is σ = 30331110. Its totient is φ = 30331108.

The previous prime is 30331099. The next prime is 30331117. The reversal of 30331109 is 90113303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20702500 + 9628609 = 4550^2 + 3103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30331109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30331139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15165554 + 15165555.

It is an arithmetic number, because the mean of its divisors is an integer number (15165555).

Almost surely, 2^30331109 is an apocalyptic number.

It is an amenable number.

30331109 is a deficient number, since it is larger than the sum of its proper divisors (1).

30331109 is an equidigital number, since it uses as much as digits as its factorization.

30331109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 20.

The square root of 30331109 is about 5507.3686094177. The cubic root of 30331109 is about 311.8622179545.

The spelling of 30331109 in words is "thirty million, three hundred thirty-one thousand, one hundred nine".