23211308 has 18 divisors (see below), whose sum is σ = 41344716. Its totient is φ = 11402104.

The previous prime is 23211277. The next prime is 23211311. The reversal of 23211308 is 80311232.

It is a self number, because there is not a number n which added to its sum of digits gives 23211308.

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 5 ways as a sum of consecutive naturals, for example, 13091 + ... + 14757.

Almost surely, 2^23211308 is an apocalyptic number.

It is an amenable number.

23211308 is a deficient number, since it is larger than the sum of its proper divisors (18133408).

23211308 is a wasteful number, since it uses less digits than its factorization.

23211308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789 (or 1728 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 23211308 is about 4817.8115363721. The cubic root of 23211308 is about 285.2549601085.

The spelling of 23211308 in words is "twenty-three million, two hundred eleven thousand, three hundred eight".