2003023020 has 48 divisors (see below), whose sum is σ = 5745263328. Its totient is φ = 521111040.

The previous prime is 2003023019. The next prime is 2003023021. The reversal of 2003023020 is 203203002.

It is an interprime number because it is at equal distance from previous prime (2003023019) and next prime (2003023021).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2003022987 and 2003023005.

It is not an unprimeable number, because it can be changed into a prime (2003023021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404659 + ... + 409578.

It is an arithmetic number, because the mean of its divisors is an integer number (119692986).

Almost surely, 2^2003023020 is an apocalyptic number.

2003023020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003023020 is an abundant number, since it is smaller than the sum of its proper divisors (3742240308).

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

2003023020 is a wasteful number, since it uses less digits than its factorization.

2003023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814290 (or 814288 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 2003023020 is about 44755.1451790741. The cubic root of 2003023020 is about 1260.5555247525. Note that the first 4 decimals are identical.

Adding to 2003023020 its reverse (203203002), we get a palindrome (2206226022).

The spelling of 2003023020 in words is "two billion, three million, twenty-three thousand, twenty".