11231906 has 8 divisors (see below), whose sum is σ = 19254720. Its totient is φ = 4813668.

The previous prime is 11231893. The next prime is 11231911. The reversal of 11231906 is 60913211.

It is a happy number.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401126 + ... + 401153.

It is an arithmetic number, because the mean of its divisors is an integer number (2406840).

Almost surely, 2^11231906 is an apocalyptic number.

11231906 is a deficient number, since it is larger than the sum of its proper divisors (8022814).

11231906 is an equidigital number, since it uses as much as digits as its factorization.

11231906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802288.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 11231906 is about 3351.4035865589. The cubic root of 11231906 is about 223.9500446636.

The spelling of 11231906 in words is "eleven million, two hundred thirty-one thousand, nine hundred six".