2123140423 has 2 divisors, whose sum is σ = 2123140424. Its totient is φ = 2123140422.

The previous prime is 2123140417. The next prime is 2123140451. The reversal of 2123140423 is 3240413212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2123140423 - 2⁵ = 2123140391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2123140394 and 2123140403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2123140403) 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, 1061570211 + 1061570212.

It is an arithmetic number, because the mean of its divisors is an integer number (1061570212).

Almost surely, 2^2123140423 is an apocalyptic number.

2123140423 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123140423 is an equidigital number, since it uses as much as digits as its factorization.

2123140423 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 2123140423 is about 46077.5479273800. The cubic root of 2123140423 is about 1285.2656665809.

Adding to 2123140423 its reverse (3240413212), we get a palindrome (5363553635).

The spelling of 2123140423 in words is "two billion, one hundred twenty-three million, one hundred forty thousand, four hundred twenty-three".