11711711 has 12 divisors (see below), whose sum is σ = 12978672. Its totient is φ = 10560000.

The previous prime is 11711701. The next prime is 11711731.

11711711 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 11711711 - 2¹⁰ = 11710687 is a prime.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11711701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17951 + ... + 18591.

It is an arithmetic number, because the mean of its divisors is an integer number (1081556).

Almost surely, 2^11711711 is an apocalyptic number.

11711711 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11711711 is a deficient number, since it is larger than the sum of its proper divisors (1266961).

11711711 is a wasteful number, since it uses less digits than its factorization.

11711711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814 (or 803 counting only the distinct ones).

The product of its digits is 49, while the sum is 20.

The square root of 11711711 is about 3422.2377182189. The cubic root of 11711711 is about 227.0945869087.

It can be divided in two parts, 1171 and 1711, that added together give a palindrome (2882).

The spelling of 11711711 in words is "eleven million, seven hundred eleven thousand, seven hundred eleven".