1230320123 has 2 divisors, whose sum is σ = 1230320124. Its totient is φ = 1230320122.

The previous prime is 1230320093. The next prime is 1230320131. The reversal of 1230320123 is 3210230321.

It is a strong prime.

It is an emirp because it is prime and its reverse (3210230321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1230320123 - 2¹⁸ = 1230057979 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230320023) 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, 615160061 + 615160062.

It is an arithmetic number, because the mean of its divisors is an integer number (615160062).

Almost surely, 2^1230320123 is an apocalyptic number.

1230320123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230320123 is an equidigital number, since it uses as much as digits as its factorization.

1230320123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1230320123 is about 35075.9194177430. The cubic root of 1230320123 is about 1071.5342136587.

Adding to 1230320123 its reverse (3210230321), we get a palindrome (4440550444).

The spelling of 1230320123 in words is "one billion, two hundred thirty million, three hundred twenty thousand, one hundred twenty-three".