120053021550 has 192 divisors, whose sum is σ = 378203364864. Its totient is φ = 24475276800.

The previous prime is 120053021513. The next prime is 120053021551. The reversal of 120053021550 is 55120350021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 120053021550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120053021551) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 514092 + ... + 710208.

It is an arithmetic number, because the mean of its divisors is an integer number (1969809192).

Almost surely, 2^120053021550 is an apocalyptic number.

120053021550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 120053021550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189101682432).

120053021550 is an abundant number, since it is smaller than the sum of its proper divisors (258150343314).

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

120053021550 is a wasteful number, since it uses less digits than its factorization.

120053021550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196203 (or 196198 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

Adding to 120053021550 its reverse (55120350021), we get a palindrome (175173371571).

The spelling of 120053021550 in words is "one hundred twenty billion, fifty-three million, twenty-one thousand, five hundred fifty".