11161711 has 8 divisors (see below), whose sum is σ = 12240000. Its totient is φ = 10094040.

The previous prime is 11161687. The next prime is 11161763. The reversal of 11161711 is 11716111.

It is a happy number.

11161711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11161711 - 2¹⁹ = 10637423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11161771) 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, 361 + ... + 4738.

It is an arithmetic number, because the mean of its divisors is an integer number (1530000).

Almost surely, 2^11161711 is an apocalyptic number.

11161711 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11161711 is a deficient number, since it is larger than the sum of its proper divisors (1078289).

11161711 is a wasteful number, since it uses less digits than its factorization.

11161711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5309.

The product of its digits is 42, while the sum is 19.

The square root of 11161711 is about 3340.9146951097. The cubic root of 11161711 is about 223.4825361254.

Adding to 11161711 its reverse (11716111), we get a palindrome (22877822).

It can be divided in two parts, 111617 and 11, that added together give a triangular number (111628 = T₄₇₂).

The spelling of 11161711 in words is "eleven million, one hundred sixty-one thousand, seven hundred eleven".