123120302424 has 128 divisors (see below), whose sum is σ = 355384972800. Its totient is φ = 34816573440.

The previous prime is 123120302399. The next prime is 123120302471. The reversal of 123120302424 is 424203021321.

It is a happy number.

123120302424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 123120302394 and 123120302403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25325754 + ... + 25330614.

It is an arithmetic number, because the mean of its divisors is an integer number (2776445100).

Almost surely, 2^123120302424 is an apocalyptic number.

123120302424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123120302424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177692486400).

123120302424 is an abundant number, since it is smaller than the sum of its proper divisors (232264670376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123120302424 is a wasteful number, since it uses less digits than its factorization.

123120302424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6393 (or 6389 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 123120302424 its reverse (424203021321), we get a palindrome (547323323745).

The spelling of 123120302424 in words is "one hundred twenty-three billion, one hundred twenty million, three hundred two thousand, four hundred twenty-four".