2142304123 has 2 divisors, whose sum is σ = 2142304124. Its totient is φ = 2142304122.

The previous prime is 2142304027. The next prime is 2142304127. The reversal of 2142304123 is 3214032412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2142304123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2142304094 and 2142304103.

It is not a weakly prime, because it can be changed into another prime (2142304127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071152061 + 1071152062.

It is an arithmetic number, because the mean of its divisors is an integer number (1071152062).

Almost surely, 2^2142304123 is an apocalyptic number.

2142304123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142304123 is an equidigital number, since it uses as much as digits as its factorization.

2142304123 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2142304123 is about 46285.0313060281. The cubic root of 2142304123 is about 1289.1210732642.

Adding to 2142304123 its reverse (3214032412), we get a palindrome (5356336535).

The spelling of 2142304123 in words is "two billion, one hundred forty-two million, three hundred four thousand, one hundred twenty-three".