20368223 has 2 divisors, whose sum is σ = 20368224. Its totient is φ = 20368222.

The previous prime is 20368219. The next prime is 20368253. The reversal of 20368223 is 32286302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20368223 - 2² = 20368219 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 20368192 and 20368201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20368213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10184111 + 10184112.

It is an arithmetic number, because the mean of its divisors is an integer number (10184112).

Almost surely, 2^20368223 is an apocalyptic number.

20368223 is a deficient number, since it is larger than the sum of its proper divisors (1).

20368223 is an equidigital number, since it uses as much as digits as its factorization.

20368223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 20368223 is about 4513.1167722540. The cubic root of 20368223 is about 273.0974932109.

The spelling of 20368223 in words is "twenty million, three hundred sixty-eight thousand, two hundred twenty-three".