2003120240 has 80 divisors (see below), whose sum is σ = 5115074400. Its totient is φ = 723471360.

The previous prime is 2003120233. The next prime is 2003120261. The reversal of 2003120240 is 420213002.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123482 + ... + 138758.

It is an arithmetic number, because the mean of its divisors is an integer number (63938430).

Almost surely, 2^2003120240 is an apocalyptic number.

2003120240 is a gapful number since it is divisible by the number (20) 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 2003120240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2557537200).

2003120240 is an abundant number, since it is smaller than the sum of its proper divisors (3111954160).

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

2003120240 is a wasteful number, since it uses less digits than its factorization.

2003120240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15450 (or 15444 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2003120240 is about 44756.2312979992. The cubic root of 2003120240 is about 1260.5759187976.

Adding to 2003120240 its reverse (420213002), we get a palindrome (2423333242).

The spelling of 2003120240 in words is "two billion, three million, one hundred twenty thousand, two hundred forty".