20023201 has 12 divisors (see below), whose sum is σ = 22199296. Its totient is φ = 18045720.

The previous prime is 20023187. The next prime is 20023259. The reversal of 20023201 is 10232002.

It is not a de Polignac number, because 20023201 - 2⁹ = 20022689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20023291) 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 11 ways as a sum of consecutive naturals, for example, 14716 + ... + 16018.

Almost surely, 2^20023201 is an apocalyptic number.

It is an amenable number.

20023201 is a deficient number, since it is larger than the sum of its proper divisors (2176095).

20023201 is a wasteful number, since it uses less digits than its factorization.

20023201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452 (or 1441 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20023201 is about 4474.7291538148. The cubic root of 20023201 is about 271.5466831038.

Adding to 20023201 its reverse (10232002), we get a palindrome (30255203).

The spelling of 20023201 in words is "twenty million, twenty-three thousand, two hundred one".