123243343423 has 8 divisors (see below), whose sum is σ = 124587030960. Its totient is φ = 121902076800.

The previous prime is 123243343403. The next prime is 123243343471. The reversal of 123243343423 is 324343342321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123243343423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123243343403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502765 + ... + 706582.

It is an arithmetic number, because the mean of its divisors is an integer number (15573378870).

Almost surely, 2^123243343423 is an apocalyptic number.

123243343423 is a deficient number, since it is larger than the sum of its proper divisors (1343687537).

123243343423 is a wasteful number, since it uses less digits than its factorization.

123243343423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1210457.

The product of its digits is 124416, while the sum is 34.

Adding to 123243343423 its reverse (324343342321), we get a palindrome (447586685744).

The spelling of 123243343423 in words is "one hundred twenty-three billion, two hundred forty-three million, three hundred forty-three thousand, four hundred twenty-three".