1311332339 has 2 divisors, whose sum is σ = 1311332340. Its totient is φ = 1311332338.

The previous prime is 1311332317. The next prime is 1311332357. The reversal of 1311332339 is 9332331131.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9332331131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1311332339 - 2²⁰ = 1310283763 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311332359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655666169 + 655666170.

It is an arithmetic number, because the mean of its divisors is an integer number (655666170).

Almost surely, 2^1311332339 is an apocalyptic number.

1311332339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311332339 is an equidigital number, since it uses as much as digits as its factorization.

1311332339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4374, while the sum is 29.

The square root of 1311332339 is about 36212.3230268371. The cubic root of 1311332339 is about 1094.5550033251. Note that the first 3 decimals are identical.

The spelling of 1311332339 in words is "one billion, three hundred eleven million, three hundred thirty-two thousand, three hundred thirty-nine".