20213323 has 8 divisors (see below), whose sum is σ = 23048928. Its totient is φ = 17560704.

The previous prime is 20213317. The next prime is 20213351. The reversal of 20213323 is 32331202.

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

It is a cyclic number.

It is not a de Polignac number, because 20213323 - 2²¹ = 18116171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20213297 and 20213306.

It is not an unprimeable number, because it can be changed into a prime (20213353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45511 + ... + 45952.

It is an arithmetic number, because the mean of its divisors is an integer number (2881116).

Almost surely, 2^20213323 is an apocalyptic number.

20213323 is a deficient number, since it is larger than the sum of its proper divisors (2835605).

20213323 is a wasteful number, since it uses less digits than its factorization.

20213323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91493.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 20213323 is about 4495.9229308341. The cubic root of 20213323 is about 272.4034301360.

Adding to 20213323 its reverse (32331202), we get a palindrome (52544525).

The spelling of 20213323 in words is "twenty million, two hundred thirteen thousand, three hundred twenty-three".