21119324 has 6 divisors (see below), whose sum is σ = 36958824. Its totient is φ = 10559660.

The previous prime is 21119303. The next prime is 21119327. The reversal of 21119324 is 42391112.

It is a self number, because there is not a number n which added to its sum of digits gives 21119324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21119327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2639912 + ... + 2639919.

It is an arithmetic number, because the mean of its divisors is an integer number (6159804).

Almost surely, 2^21119324 is an apocalyptic number.

It is an amenable number.

21119324 is a deficient number, since it is larger than the sum of its proper divisors (15839500).

21119324 is a wasteful number, since it uses less digits than its factorization.

21119324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5279835 (or 5279833 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 21119324 is about 4595.5765688323. The cubic root of 21119324 is about 276.4139800237.

The spelling of 21119324 in words is "twenty-one million, one hundred nineteen thousand, three hundred twenty-four".