12019517369 has 2 divisors, whose sum is σ = 12019517370. Its totient is φ = 12019517368.

The previous prime is 12019517299. The next prime is 12019517383. The reversal of 12019517369 is 96371591021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6254911744 + 5764605625 = 79088^2 + 75925^2 .

It is a cyclic number.

It is not a de Polignac number, because 12019517369 - 2⁸ = 12019517113 is a prime.

It is a super-2 number, since 2×12019517369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12019517569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6009758684 + 6009758685.

It is an arithmetic number, because the mean of its divisors is an integer number (6009758685).

Almost surely, 2^12019517369 is an apocalyptic number.

It is an amenable number.

12019517369 is a deficient number, since it is larger than the sum of its proper divisors (1).

12019517369 is an equidigital number, since it uses as much as digits as its factorization.

12019517369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 44.

The spelling of 12019517369 in words is "twelve billion, nineteen million, five hundred seventeen thousand, three hundred sixty-nine".