1311349255 has 16 divisors (see below), whose sum is σ = 1643405760. Its totient is φ = 1002631168.

The previous prime is 1311349253. The next prime is 1311349261. The reversal of 1311349255 is 5529431131.

It is a cyclic number.

It is not a de Polignac number, because 1311349255 - 2¹ = 1311349253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1311349255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311349253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157989 + ... + 166081.

It is an arithmetic number, because the mean of its divisors is an integer number (102712860).

Almost surely, 2^1311349255 is an apocalyptic number.

1311349255 is a deficient number, since it is larger than the sum of its proper divisors (332056505).

1311349255 is a wasteful number, since it uses less digits than its factorization.

1311349255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9530.

The product of its digits is 16200, while the sum is 34.

The square root of 1311349255 is about 36212.5565929830. The cubic root of 1311349255 is about 1094.5597098393.

The spelling of 1311349255 in words is "one billion, three hundred eleven million, three hundred forty-nine thousand, two hundred fifty-five".