20020323 has 16 divisors (see below), whose sum is σ = 27332640. Its totient is φ = 13031424.

The previous prime is 20020307. The next prime is 20020331. The reversal of 20020323 is 32302002.

It is not a de Polignac number, because 20020323 - 2⁴ = 20020307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20020299 and 20020308.

It is not an unprimeable number, because it can be changed into a prime (20020303) 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 15 ways as a sum of consecutive naturals, for example, 24343 + ... + 25151.

It is an arithmetic number, because the mean of its divisors is an integer number (1708290).

Almost surely, 2^20020323 is an apocalyptic number.

20020323 is a deficient number, since it is larger than the sum of its proper divisors (7312317).

20020323 is a wasteful number, since it uses less digits than its factorization.

20020323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 20020323 is about 4474.4075585490. The cubic root of 20020323 is about 271.5336723835.

Adding to 20020323 its reverse (32302002), we get a palindrome (52322325).

The spelling of 20020323 in words is "twenty million, twenty thousand, three hundred twenty-three".