384212123 has 2 divisors, whose sum is σ = 384212124. Its totient is φ = 384212122.

The previous prime is 384212119. The next prime is 384212131. The reversal of 384212123 is 321212483.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 384212123 - 2² = 384212119 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 384212092 and 384212101.

It is not a weakly prime, because it can be changed into another prime (384212923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192106061 + 192106062.

It is an arithmetic number, because the mean of its divisors is an integer number (192106062).

Almost surely, 2^384212123 is an apocalyptic number.

384212123 is a deficient number, since it is larger than the sum of its proper divisors (1).

384212123 is an equidigital number, since it uses as much as digits as its factorization.

384212123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 26.

The square root of 384212123 is about 19601.3296232679. The cubic root of 384212123 is about 726.9820503683.

The spelling of 384212123 in words is "three hundred eighty-four million, two hundred twelve thousand, one hundred twenty-three".