1311143411 has 8 divisors (see below), whose sum is σ = 1389260160. Its totient is φ = 1233136768.

The previous prime is 1311143399. The next prime is 1311143413. The reversal of 1311143411 is 1143411131.

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 1311143411 - 2¹⁰ = 1311142387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311143413) 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, 2336 + ... + 51261.

It is an arithmetic number, because the mean of its divisors is an integer number (173657520).

Almost surely, 2^1311143411 is an apocalyptic number.

1311143411 is a deficient number, since it is larger than the sum of its proper divisors (78116749).

1311143411 is a wasteful number, since it uses less digits than its factorization.

1311143411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55053.

The product of its digits is 144, while the sum is 20.

The square root of 1311143411 is about 36209.7143181219. The cubic root of 1311143411 is about 1094.5024354104.

Adding to 1311143411 its reverse (1143411131), we get a palindrome (2454554542).

The spelling of 1311143411 in words is "one billion, three hundred eleven million, one hundred forty-three thousand, four hundred eleven".