1313127311 has 8 divisors (see below), whose sum is σ = 1416604464. Its totient is φ = 1212565120.

The previous prime is 1313127289. The next prime is 1313127317. The reversal of 1313127311 is 1137213131.

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

It is a de Polignac number, because none of the positive numbers 2^k-1313127311 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 (1313127317) 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, 727805 + ... + 729606.

It is an arithmetic number, because the mean of its divisors is an integer number (177075558).

Almost surely, 2^1313127311 is an apocalyptic number.

1313127311 is a deficient number, since it is larger than the sum of its proper divisors (103477153).

1313127311 is a wasteful number, since it uses less digits than its factorization.

1313127311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457481.

The product of its digits is 378, while the sum is 23.

The square root of 1313127311 is about 36237.0985455514. The cubic root of 1313127311 is about 1095.0541902388.

The spelling of 1313127311 in words is "one billion, three hundred thirteen million, one hundred twenty-seven thousand, three hundred eleven".