1311523339 has 8 divisors (see below), whose sum is σ = 1499944160. Its totient is φ = 1123367616.

The previous prime is 1311523321. The next prime is 1311523351. The reversal of 1311523339 is 9333251131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1311523339 - 2¹¹ = 1311521291 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311523339.

It is not an unprimeable number, because it can be changed into a prime (1311523379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55554 + ... + 75559.

It is an arithmetic number, because the mean of its divisors is an integer number (187493020).

Almost surely, 2^1311523339 is an apocalyptic number.

1311523339 is a deficient number, since it is larger than the sum of its proper divisors (188420821).

1311523339 is a wasteful number, since it uses less digits than its factorization.

1311523339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132549.

The product of its digits is 7290, while the sum is 31.

The square root of 1311523339 is about 36214.9601546101. The cubic root of 1311523339 is about 1094.6081426273.

The spelling of 1311523339 in words is "one billion, three hundred eleven million, five hundred twenty-three thousand, three hundred thirty-nine".