420000323 has 2 divisors, whose sum is σ = 420000324. Its totient is φ = 420000322.

The previous prime is 420000281. The next prime is 420000331. The reversal of 420000323 is 323000024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420000323 - 2²⁸ = 151564867 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 420000298 and 420000307.

It is not a weakly prime, because it can be changed into another prime (420000223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210000161 + 210000162.

It is an arithmetic number, because the mean of its divisors is an integer number (210000162).

Almost surely, 2^420000323 is an apocalyptic number.

420000323 is a deficient number, since it is larger than the sum of its proper divisors (1).

420000323 is an equidigital number, since it uses as much as digits as its factorization.

420000323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 420000323 is about 20493.9094123108. The cubic root of 420000323 is about 748.8874306985.

Adding to 420000323 its reverse (323000024), we get a palindrome (743000347).

The spelling of 420000323 in words is "four hundred twenty million, three hundred twenty-three", and thus it is an aban number.