1311344211 has 8 divisors (see below), whose sum is σ = 1789120960. Its totient is φ = 853898472.

The previous prime is 1311344197. The next prime is 1311344213. The reversal of 1311344211 is 1124431131.

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

It is not a de Polignac number, because 1311344211 - 2¹¹ = 1311342163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311344213) 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, 5082601 + ... + 5082858.

It is an arithmetic number, because the mean of its divisors is an integer number (223640120).

Almost surely, 2^1311344211 is an apocalyptic number.

1311344211 is a deficient number, since it is larger than the sum of its proper divisors (477776749).

1311344211 is a wasteful number, since it uses less digits than its factorization.

1311344211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10165505.

The product of its digits is 288, while the sum is 21.

The square root of 1311344211 is about 36212.4869485651. The cubic root of 1311344211 is about 1094.5583064587.

Adding to 1311344211 its reverse (1124431131), we get a palindrome (2435775342).

The spelling of 1311344211 in words is "one billion, three hundred eleven million, three hundred forty-four thousand, two hundred eleven".