120804203520 has 2112 divisors, whose sum is σ = 588837989376. Its totient is φ = 22932357120.

The previous prime is 120804203461. The next prime is 120804203543. The reversal of 120804203520 is 25302408021.

120804203520 is a `hidden beast` number, since 1 + 20 + 80 + 42 + 0 + 3 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (2112).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1245404112 + ... + 1245404208.

Almost surely, 2^120804203520 is an apocalyptic number.

120804203520 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 120804203520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294418994688).

120804203520 is an abundant number, since it is smaller than the sum of its proper divisors (468033785856).

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

120804203520 is a wasteful number, since it uses less digits than its factorization.

120804203520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The spelling of 120804203520 in words is "one hundred twenty billion, eight hundred four million, two hundred three thousand, five hundred twenty".