120443304520 has 128 divisors (see below), whose sum is σ = 341025500160. Its totient is φ = 37189820160.

The previous prime is 120443304481. The next prime is 120443304521. The reversal of 120443304520 is 25403344021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (120443304521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146827 + ... + 512293.

It is an arithmetic number, because the mean of its divisors is an integer number (2664261720).

Almost surely, 2^120443304520 is an apocalyptic number.

120443304520 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 120443304520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170512750080).

120443304520 is an abundant number, since it is smaller than the sum of its proper divisors (220582195640).

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

120443304520 is a wasteful number, since it uses less digits than its factorization.

120443304520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365603 (or 365599 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 120443304520 its reverse (25403344021), we get a palindrome (145846648541).

The spelling of 120443304520 in words is "one hundred twenty billion, four hundred forty-three million, three hundred four thousand, five hundred twenty".