120371820 has 24 divisors (see below), whose sum is σ = 337041264. Its totient is φ = 32099136.

The previous prime is 120371809. The next prime is 120371827. The reversal of 120371820 is 28173021.

It is a super-3 number, since 3×120371820³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (120371827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1003039 + ... + 1003158.

It is an arithmetic number, because the mean of its divisors is an integer number (14043386).

Almost surely, 2^120371820 is an apocalyptic number.

120371820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120371820 is an abundant number, since it is smaller than the sum of its proper divisors (216669444).

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

120371820 is a wasteful number, since it uses less digits than its factorization.

120371820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006209 (or 2006207 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 120371820 is about 10971.4092075722. The cubic root of 120371820 is about 493.7513268137.

The spelling of 120371820 in words is "one hundred twenty million, three hundred seventy-one thousand, eight hundred twenty".