120403000 has 64 divisors (see below), whose sum is σ = 296618400. Its totient is φ = 45619200.

The previous prime is 120402991. The next prime is 120403001. The reversal of 120403000 is 304021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120403001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15832 + ... + 22168.

Almost surely, 2^120403000 is an apocalyptic number.

120403000 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 120403000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148309200).

120403000 is an abundant number, since it is smaller than the sum of its proper divisors (176215400).

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

120403000 is a wasteful number, since it uses less digits than its factorization.

120403000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6377 (or 6363 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 120403000 is about 10972.8300816152. The cubic root of 120403000 is about 493.7939553882.

Adding to 120403000 its reverse (304021), we get a palindrome (120707021).

The spelling of 120403000 in words is "one hundred twenty million, four hundred three thousand".