20343227 has 2 divisors, whose sum is σ = 20343228. Its totient is φ = 20343226.

The previous prime is 20343209. The next prime is 20343263. The reversal of 20343227 is 72234302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20343227 - 2²⁰ = 19294651 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (20343287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10171613 + 10171614.

It is an arithmetic number, because the mean of its divisors is an integer number (10171614).

Almost surely, 2^20343227 is an apocalyptic number.

20343227 is a deficient number, since it is larger than the sum of its proper divisors (1).

20343227 is an equidigital number, since it uses as much as digits as its factorization.

20343227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 20343227 is about 4510.3466607346. The cubic root of 20343227 is about 272.9857318774.

Adding to 20343227 its reverse (72234302), we get a palindrome (92577529).

The spelling of 20343227 in words is "twenty million, three hundred forty-three thousand, two hundred twenty-seven".