123124344134423 has 4 divisors (see below), whose sum is σ = 123124376542608. Its totient is φ = 123124311726240.

The previous prime is 123124344134371. The next prime is 123124344134549. The reversal of 123124344134423 is 324431443421321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123124344134423 - 2²⁰ = 123124343085847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123124344134123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9611186 + ... + 18401727.

It is an arithmetic number, because the mean of its divisors is an integer number (30781094135652).

Almost surely, 2^{123124344134423} is an apocalyptic number.

123124344134423 is a deficient number, since it is larger than the sum of its proper divisors (32408185).

123124344134423 is an equidigital number, since it uses as much as digits as its factorization.

123124344134423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32408184.

The product of its digits is 663552, while the sum is 41.

Adding to 123124344134423 its reverse (324431443421321), we get a palindrome (447555787555744).

The spelling of 123124344134423 in words is "one hundred twenty-three trillion, one hundred twenty-four billion, three hundred forty-four million, one hundred thirty-four thousand, four hundred twenty-three".