11671311 has 8 divisors (see below), whose sum is σ = 16098480. Its totient is φ = 7512512.

The previous prime is 11671307. The next prime is 11671343. The reversal of 11671311 is 11317611.

11671311 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 a cyclic number.

It is not a de Polignac number, because 11671311 - 2² = 11671307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11671351) 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, 66990 + ... + 67163.

It is an arithmetic number, because the mean of its divisors is an integer number (2012310).

Almost surely, 2^11671311 is an apocalyptic number.

11671311 is a deficient number, since it is larger than the sum of its proper divisors (4427169).

11671311 is a wasteful number, since it uses less digits than its factorization.

11671311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134185.

The product of its digits is 126, while the sum is 21.

The square root of 11671311 is about 3416.3300484584. The cubic root of 11671311 is about 226.8331622266.

Adding to 11671311 its reverse (11317611), we get a palindrome (22988922).

The spelling of 11671311 in words is "eleven million, six hundred seventy-one thousand, three hundred eleven".