1311041411 has 4 divisors (see below), whose sum is σ = 1388161512. Its totient is φ = 1233921312.

The previous prime is 1311041399. The next prime is 1311041471. The reversal of 1311041411 is 1141401131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1311041411 - 2¹⁰ = 1311040387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 77120083 = 1311041411 / (1 + 3 + 1 + 1 + 0 + 4 + 1 + 4 + 1 + 1).

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 1311041411.

It is not an unprimeable number, because it can be changed into a prime (1311041471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38560025 + ... + 38560058.

It is an arithmetic number, because the mean of its divisors is an integer number (347040378).

Almost surely, 2^1311041411 is an apocalyptic number.

1311041411 is a deficient number, since it is larger than the sum of its proper divisors (77120101).

1311041411 is an equidigital number, since it uses as much as digits as its factorization.

1311041411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77120100.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 1311041411 is about 36208.3058289117. The cubic root of 1311041411 is about 1094.4740525139.

Adding to 1311041411 its reverse (1141401131), we get a palindrome (2452442542).

The spelling of 1311041411 in words is "one billion, three hundred eleven million, forty-one thousand, four hundred eleven".