20344211 has 2 divisors, whose sum is σ = 20344212. Its totient is φ = 20344210.

The previous prime is 20344199. The next prime is 20344249. The reversal of 20344211 is 11244302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20344211 - 2⁶ = 20344147 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20344211.

It is not a weakly prime, because it can be changed into another prime (20344271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10172105 + 10172106.

It is an arithmetic number, because the mean of its divisors is an integer number (10172106).

Almost surely, 2^20344211 is an apocalyptic number.

20344211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20344211 is an equidigital number, since it uses as much as digits as its factorization.

20344211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 20344211 is about 4510.4557419401. The cubic root of 20344211 is about 272.9901332379.

Adding to 20344211 its reverse (11244302), we get a palindrome (31588513).

Subtracting from 20344211 its reverse (11244302), we obtain a palindrome (9099909).

The spelling of 20344211 in words is "twenty million, three hundred forty-four thousand, two hundred eleven".