1313086811 has 8 divisors (see below), whose sum is σ = 1318606080. Its totient is φ = 1307579112.

The previous prime is 1313086807. The next prime is 1313086823. The reversal of 1313086811 is 1186803131.

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 1313086811 - 2² = 1313086807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313086861) 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, 279266 + ... + 283928.

It is an arithmetic number, because the mean of its divisors is an integer number (164825760).

Almost surely, 2^1313086811 is an apocalyptic number.

1313086811 is a deficient number, since it is larger than the sum of its proper divisors (5519269).

1313086811 is an equidigital number, since it uses as much as digits as its factorization.

1313086811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5785.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 1313086811 is about 36236.5397216677. The cubic root of 1313086811 is about 1095.0429320893.

Adding to 1313086811 its reverse (1186803131), we get a palindrome (2499889942).

The spelling of 1313086811 in words is "one billion, three hundred thirteen million, eighty-six thousand, eight hundred eleven".