20363223 has 4 divisors (see below), whose sum is σ = 27150968. Its totient is φ = 13575480.

The previous prime is 20363197. The next prime is 20363251. The reversal of 20363223 is 32236302.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20363223 - 2⁶ = 20363159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20363223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20363293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3393868 + ... + 3393873.

It is an arithmetic number, because the mean of its divisors is an integer number (6787742).

Almost surely, 2^20363223 is an apocalyptic number.

20363223 is a deficient number, since it is larger than the sum of its proper divisors (6787745).

20363223 is an equidigital number, since it uses as much as digits as its factorization.

20363223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6787744.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 20363223 is about 4512.5627973470. The cubic root of 20363223 is about 273.0751446860.

Adding to 20363223 its reverse (32236302), we get a palindrome (52599525).

The spelling of 20363223 in words is "twenty million, three hundred sixty-three thousand, two hundred twenty-three".