16012132309 has 2 divisors, whose sum is σ = 16012132310. Its totient is φ = 16012132308.

The previous prime is 16012132291. The next prime is 16012132337. The reversal of 16012132309 is 90323121061.

It is an a-pointer prime, because the next prime (16012132337) can be obtained adding 16012132309 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15580531684 + 431600625 = 124822^2 + 20775^2 .

It is an emirp because it is prime and its reverse (90323121061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16012132309 - 2¹⁷ = 16012001237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16012132399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8006066154 + 8006066155.

It is an arithmetic number, because the mean of its divisors is an integer number (8006066155).

Almost surely, 2^16012132309 is an apocalyptic number.

It is an amenable number.

16012132309 is a deficient number, since it is larger than the sum of its proper divisors (1).

16012132309 is an equidigital number, since it uses as much as digits as its factorization.

16012132309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 16012132309 in words is "sixteen billion, twelve million, one hundred thirty-two thousand, three hundred nine".