2003023120 has 80 divisors (see below), whose sum is σ = 5466221568. Its totient is φ = 668183040.

The previous prime is 2003023097. The next prime is 2003023151. The reversal of 2003023120 is 213203002.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2003023120.

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, 27616 + ... + 69055.

Almost surely, 2^2003023120 is an apocalyptic number.

2003023120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003023120 is an abundant number, since it is smaller than the sum of its proper divisors (3463198448).

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

2003023120 is a wasteful number, since it uses less digits than its factorization.

2003023120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96728 (or 96722 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2003023120 is about 44755.1462962641. The cubic root of 2003023120 is about 1260.5555457301. Note that the first 4 decimals are identical.

Adding to 2003023120 its reverse (213203002), we get a palindrome (2216226122).

The spelling of 2003023120 in words is "two billion, three million, twenty-three thousand, one hundred twenty".