123042523 has 2 divisors, whose sum is σ = 123042524. Its totient is φ = 123042522.

The previous prime is 123042511. The next prime is 123042527. The reversal of 123042523 is 325240321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123042523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123042494 and 123042503.

It is not a weakly prime, because it can be changed into another prime (123042527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61521261 + 61521262.

It is an arithmetic number, because the mean of its divisors is an integer number (61521262).

Almost surely, 2^123042523 is an apocalyptic number.

123042523 is a deficient number, since it is larger than the sum of its proper divisors (1).

123042523 is an equidigital number, since it uses as much as digits as its factorization.

123042523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 123042523 is about 11092.4534256403. The cubic root of 123042523 is about 497.3762870087.

Adding to 123042523 its reverse (325240321), we get a palindrome (448282844).

The spelling of 123042523 in words is "one hundred twenty-three million, forty-two thousand, five hundred twenty-three".