30331140209 has 2 divisors, whose sum is σ = 30331140210. Its totient is φ = 30331140208.

The previous prime is 30331140163. The next prime is 30331140233. The reversal of 30331140209 is 90204113303.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30031850209 + 299290000 = 173297^2 + 17300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30331140209 is a prime.

It is not a weakly prime, because it can be changed into another prime (30331140709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15165570104 + 15165570105.

It is an arithmetic number, because the mean of its divisors is an integer number (15165570105).

Almost surely, 2^30331140209 is an apocalyptic number.

It is an amenable number.

30331140209 is a deficient number, since it is larger than the sum of its proper divisors (1).

30331140209 is an equidigital number, since it uses as much as digits as its factorization.

30331140209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 30331140209 in words is "thirty billion, three hundred thirty-one million, one hundred forty thousand, two hundred nine".