1311101711 has 4 divisors (see below), whose sum is σ = 1311208392. Its totient is φ = 1310995032.

The previous prime is 1311101653. The next prime is 1311101713. The reversal of 1311101711 is 1171011131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1171011131 = 43 ⋅27232817.

It is a cyclic number.

It is not a de Polignac number, because 1311101711 - 2⁶ = 1311101647 is a prime.

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 1311101711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311101713) 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, 32081 + ... + 60426.

It is an arithmetic number, because the mean of its divisors is an integer number (327802098).

Almost surely, 2^1311101711 is an apocalyptic number.

1311101711 is a deficient number, since it is larger than the sum of its proper divisors (106681).

1311101711 is an equidigital number, since it uses as much as digits as its factorization.

1311101711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106680.

The product of its (nonzero) digits is 21, while the sum is 17.

The square root of 1311101711 is about 36209.1385012126. The cubic root of 1311101711 is about 1094.4908319924.

Adding to 1311101711 its reverse (1171011131), we get a palindrome (2482112842).

The spelling of 1311101711 in words is "one billion, three hundred eleven million, one hundred one thousand, seven hundred eleven".