11131211 has 8 divisors (see below), whose sum is σ = 13700064. Its totient is φ = 8807040.

The previous prime is 11131187. The next prime is 11131229. The reversal of 11131211 is 11213111.

It is a happy number.

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 11131211 - 2²² = 6936907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11131192 and 11131201.

It is not an unprimeable number, because it can be changed into a prime (11131231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61070 + ... + 61251.

It is an arithmetic number, because the mean of its divisors is an integer number (1712508).

Almost surely, 2^11131211 is an apocalyptic number.

11131211 is a deficient number, since it is larger than the sum of its proper divisors (2568853).

11131211 is a wasteful number, since it uses less digits than its factorization.

11131211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122341.

The product of its digits is 6, while the sum is 11.

The square root of 11131211 is about 3336.3469543799. The cubic root of 11131211 is about 223.2787909183.

Adding to 11131211 its reverse (11213111), we get a palindrome (22344322).

The spelling of 11131211 in words is "eleven million, one hundred thirty-one thousand, two hundred eleven".