1311613055 has 8 divisors (see below), whose sum is σ = 1574693232. Its totient is φ = 1048785408.

The previous prime is 1311613027. The next prime is 1311613057. The reversal of 1311613055 is 5503161131.

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

It is a cyclic number.

It is not a de Polignac number, because 1311613055 - 2¹⁰ = 1311612031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311613057) 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 in 7 ways as a sum of consecutive naturals, for example, 51509 + ... + 72638.

It is an arithmetic number, because the mean of its divisors is an integer number (196836654).

Almost surely, 2^1311613055 is an apocalyptic number.

1311613055 is a deficient number, since it is larger than the sum of its proper divisors (263080177).

1311613055 is a wasteful number, since it uses less digits than its factorization.

1311613055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126265.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 1311613055 is about 36216.1987928054. The cubic root of 1311613055 is about 1094.6331012949.

Adding to 1311613055 its reverse (5503161131), we get a palindrome (6814774186).

The spelling of 1311613055 in words is "one billion, three hundred eleven million, six hundred thirteen thousand, fifty-five".