12302135509 has 2 divisors, whose sum is σ = 12302135510. Its totient is φ = 12302135508.

The previous prime is 12302135479. The next prime is 12302135563. The reversal of 12302135509 is 90553120321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6987288100 + 5314847409 = 83590^2 + 72903^2 .

It is a cyclic number.

It is not a de Polignac number, because 12302135509 - 2¹³ = 12302127317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12302135579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6151067754 + 6151067755.

It is an arithmetic number, because the mean of its divisors is an integer number (6151067755).

Almost surely, 2^12302135509 is an apocalyptic number.

It is an amenable number.

12302135509 is a deficient number, since it is larger than the sum of its proper divisors (1).

12302135509 is an equidigital number, since it uses as much as digits as its factorization.

12302135509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 31.

The spelling of 12302135509 in words is "twelve billion, three hundred two million, one hundred thirty-five thousand, five hundred nine".