123243502450004 has 12 divisors (see below), whose sum is σ = 215728313233524. Its totient is φ = 61606841526144.

The previous prime is 123243502450001. The next prime is 123243502450021. The reversal of 123243502450004 is 400054205342321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 49714626739600 + 73528875710404 = 7050860^2 + 8574898^2 .

It is a super-2 number, since 2×123243502450004² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123243502450001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3727406117 + ... + 3727439180.

It is an arithmetic number, because the mean of its divisors is an integer number (17977359436127).

Almost surely, 2^{123243502450004} is an apocalyptic number.

It is an amenable number.

123243502450004 is a deficient number, since it is larger than the sum of its proper divisors (92484810783520).

123243502450004 is a wasteful number, since it uses less digits than its factorization.

123243502450004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7454849434 (or 7454849432 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 123243502450004 its reverse (400054205342321), we get a palindrome (523297707792325).

The spelling of 123243502450004 in words is "one hundred twenty-three trillion, two hundred forty-three billion, five hundred two million, four hundred fifty thousand, four".