30513092509 has 2 divisors, whose sum is σ = 30513092510. Its totient is φ = 30513092508.

The previous prime is 30513092473. The next prime is 30513092513. The reversal of 30513092509 is 90529031503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22244827609 + 8268264900 = 149147^2 + 90930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30513092509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30513092569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15256546254 + 15256546255.

It is an arithmetic number, because the mean of its divisors is an integer number (15256546255).

Almost surely, 2^30513092509 is an apocalyptic number.

It is an amenable number.

30513092509 is a deficient number, since it is larger than the sum of its proper divisors (1).

30513092509 is an equidigital number, since it uses as much as digits as its factorization.

30513092509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 37.

The spelling of 30513092509 in words is "thirty billion, five hundred thirteen million, ninety-two thousand, five hundred nine".