11231211 has 4 divisors (see below), whose sum is σ = 14974952. Its totient is φ = 7487472.

The previous prime is 11231201. The next prime is 11231219. The reversal of 11231211 is 11213211.

11231211 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11231211 - 2⁹ = 11230699 is a prime.

It is a super-2 number, since 2×11231211² = 252280201053042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11231219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1871866 + ... + 1871871.

It is an arithmetic number, because the mean of its divisors is an integer number (3743738).

Almost surely, 2^11231211 is an apocalyptic number.

11231211 is a deficient number, since it is larger than the sum of its proper divisors (3743741).

11231211 is an equidigital number, since it uses as much as digits as its factorization.

11231211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743740.

The product of its digits is 12, while the sum is 12.

The square root of 11231211 is about 3351.2998970549. The cubic root of 11231211 is about 223.9454254271.

Adding to 11231211 its reverse (11213211), we get a palindrome (22444422).

The spelling of 11231211 in words is "eleven million, two hundred thirty-one thousand, two hundred eleven".