20824113 has 8 divisors (see below), whose sum is σ = 27788800. Its totient is φ = 13871088.

The previous prime is 20824103. The next prime is 20824127. The reversal of 20824113 is 31142802.

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

It is not a de Polignac number, because 20824113 - 2⁸ = 20823857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20824113.

It is not an unprimeable number, because it can be changed into a prime (20824103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2928 + ... + 7086.

It is an arithmetic number, because the mean of its divisors is an integer number (3473600).

Almost surely, 2^20824113 is an apocalyptic number.

It is an amenable number.

20824113 is a deficient number, since it is larger than the sum of its proper divisors (6964687).

20824113 is a wasteful number, since it uses less digits than its factorization.

20824113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5831.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 20824113 is about 4563.3444971862. The cubic root of 20824113 is about 275.1200049247.

Adding to 20824113 its reverse (31142802), we get a palindrome (51966915).

The spelling of 20824113 in words is "twenty million, eight hundred twenty-four thousand, one hundred thirteen".