1321141169 has 2 divisors, whose sum is σ = 1321141170. Its totient is φ = 1321141168.

The previous prime is 1321141121. The next prime is 1321141177. The reversal of 1321141169 is 9611411231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 908238769 + 412902400 = 30137^2 + 20320^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321141169 - 2¹² = 1321137073 is a prime.

It is a super-2 number, since 2×1321141169² = 3490827976853373122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1321141109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660570584 + 660570585.

It is an arithmetic number, because the mean of its divisors is an integer number (660570585).

Almost surely, 2^1321141169 is an apocalyptic number.

It is an amenable number.

1321141169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321141169 is an equidigital number, since it uses as much as digits as its factorization.

1321141169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 29.

The square root of 1321141169 is about 36347.5056778316. The cubic root of 1321141169 is about 1097.2773351515.

The spelling of 1321141169 in words is "one billion, three hundred twenty-one million, one hundred forty-one thousand, one hundred sixty-nine".