2123303123 has 2 divisors, whose sum is σ = 2123303124. Its totient is φ = 2123303122.

The previous prime is 2123303113. The next prime is 2123303141. The reversal of 2123303123 is 3213033212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2123303123 - 2⁶ = 2123303059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2123303095 and 2123303104.

It is not a weakly prime, because it can be changed into another prime (2123303113) 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, 1061651561 + 1061651562.

It is an arithmetic number, because the mean of its divisors is an integer number (1061651562).

Almost surely, 2^2123303123 is an apocalyptic number.

2123303123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123303123 is an equidigital number, since it uses as much as digits as its factorization.

2123303123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 2123303123 is about 46079.3133954923. The cubic root of 2123303123 is about 1285.2984964682.

Adding to 2123303123 its reverse (3213033212), we get a palindrome (5336336335).

The spelling of 2123303123 in words is "two billion, one hundred twenty-three million, three hundred three thousand, one hundred twenty-three".