20228323 has 2 divisors, whose sum is σ = 20228324. Its totient is φ = 20228322.

The previous prime is 20228321. The next prime is 20228333. The reversal of 20228323 is 32382202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20228323 - 2¹ = 20228321 is a prime.

Together with 20228321, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20228294 and 20228303.

It is not a weakly prime, because it can be changed into another prime (20228321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10114161 + 10114162.

It is an arithmetic number, because the mean of its divisors is an integer number (10114162).

Almost surely, 2^20228323 is an apocalyptic number.

20228323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20228323 is an equidigital number, since it uses as much as digits as its factorization.

20228323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 20228323 is about 4497.5907995281. The cubic root of 20228323 is about 272.4707956245.

The spelling of 20228323 in words is "twenty million, two hundred twenty-eight thousand, three hundred twenty-three".