120420444424 has 64 divisors (see below), whose sum is σ = 261264205440. Its totient is φ = 50965217280.

The previous prime is 120420444383. The next prime is 120420444433. The reversal of 120420444424 is 424444024021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15673864 + ... + 15681544.

It is an arithmetic number, because the mean of its divisors is an integer number (4082253210).

Almost surely, 2^120420444424 is an apocalyptic number.

120420444424 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 120420444424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130632102720).

120420444424 is an abundant number, since it is smaller than the sum of its proper divisors (140843761016).

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

120420444424 is a wasteful number, since it uses less digits than its factorization.

120420444424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11150 (or 11146 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 120420444424 its reverse (424444024021), we get a palindrome (544864468445).

The spelling of 120420444424 in words is "one hundred twenty billion, four hundred twenty million, four hundred forty-four thousand, four hundred twenty-four".