1311430069 has 2 divisors, whose sum is σ = 1311430070. Its totient is φ = 1311430068.

The previous prime is 1311429937. The next prime is 1311430073. The reversal of 1311430069 is 9600341131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 982007569 + 329422500 = 31337^2 + 18150^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311430069 - 2¹¹ = 1311428021 is a prime.

It is a super-2 number, since 2×1311430069² = 3439697651754689522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311440069) 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, 655715034 + 655715035.

It is an arithmetic number, because the mean of its divisors is an integer number (655715035).

Almost surely, 2^1311430069 is an apocalyptic number.

It is an amenable number.

1311430069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311430069 is an equidigital number, since it uses as much as digits as its factorization.

1311430069 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 square root of 1311430069 is about 36213.6724042177. The cubic root of 1311430069 is about 1094.5821940430.

The spelling of 1311430069 in words is "one billion, three hundred eleven million, four hundred thirty thousand, sixty-nine".