120321203140 has 48 divisors (see below), whose sum is σ = 261662471280. Its totient is φ = 46446266880.

The previous prime is 120321203137. The next prime is 120321203209. The reversal of 120321203140 is 41302123021.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 14804075584 + 105517127556 = 121672^2 + 324834^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 865755 + ... + 995074.

It is an arithmetic number, because the mean of its divisors is an integer number (5451301485).

Almost surely, 2^120321203140 is an apocalyptic number.

120321203140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120321203140 is an abundant number, since it is smaller than the sum of its proper divisors (141341268140).

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

120321203140 is a wasteful number, since it uses less digits than its factorization.

120321203140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1860952 (or 1860950 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 120321203140 its reverse (41302123021), we get a palindrome (161623326161).

The spelling of 120321203140 in words is "one hundred twenty billion, three hundred twenty-one million, two hundred three thousand, one hundred forty".