20106223 has 8 divisors (see below), whose sum is σ = 21332592. Its totient is φ = 18884736.

The previous prime is 20106217. The next prime is 20106227. The reversal of 20106223 is 32260102.

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 20106223 - 2⁹ = 20105711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20106197 and 20106206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20106227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10636 + ... + 12382.

It is an arithmetic number, because the mean of its divisors is an integer number (2666574).

Almost surely, 2^20106223 is an apocalyptic number.

20106223 is a deficient number, since it is larger than the sum of its proper divisors (1226369).

20106223 is a wasteful number, since it uses less digits than its factorization.

20106223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 20106223 is about 4483.9963202483. The cubic root of 20106223 is about 271.9214693635.

Adding to 20106223 its reverse (32260102), we get a palindrome (52366325).

The spelling of 20106223 in words is "twenty million, one hundred six thousand, two hundred twenty-three".