120321400 has 24 divisors (see below), whose sum is σ = 279747720. Its totient is φ = 48128480.

The previous prime is 120321389. The next prime is 120321403. The reversal of 120321400 is 4123021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120321403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 300604 + ... + 301003.

It is an arithmetic number, because the mean of its divisors is an integer number (11656155).

Almost surely, 2^120321400 is an apocalyptic number.

120321400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120321400 is an abundant number, since it is smaller than the sum of its proper divisors (159426320).

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

120321400 is a wasteful number, since it uses less digits than its factorization.

120321400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601623 (or 601614 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 120321400 is about 10969.1111763898. Note that the first 4 decimals coincide. The cubic root of 120321400 is about 493.6823781771.

Adding to 120321400 its reverse (4123021), we get a palindrome (124444421).

The spelling of 120321400 in words is "one hundred twenty million, three hundred twenty-one thousand, four hundred".