124403304420 has 144 divisors (see below), whose sum is σ = 389721346560. Its totient is φ = 32088268800.

The previous prime is 124403304409. The next prime is 124403304439. The reversal of 124403304420 is 24403304421.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15000475 + ... + 15008765.

It is an arithmetic number, because the mean of its divisors is an integer number (2706398240).

Almost surely, 2^124403304420 is an apocalyptic number.

124403304420 is a gapful number since it is divisible by the number (10) 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 124403304420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194860673280).

124403304420 is an abundant number, since it is smaller than the sum of its proper divisors (265318042140).

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

124403304420 is a wasteful number, since it uses less digits than its factorization.

124403304420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11026 (or 11021 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 124403304420 its reverse (24403304421), we get a palindrome (148806608841).

Subtracting from 124403304420 its reverse (24403304421), we obtain a palindrome (99999999999).

The spelling of 124403304420 in words is "one hundred twenty-four billion, four hundred three million, three hundred four thousand, four hundred twenty".