2003303201020 has 96 divisors (see below), whose sum is σ = 4841022412800. Its totient is φ = 688691692800.

The previous prime is 2003303200949. The next prime is 2003303201027. The reversal of 2003303201020 is 201023033002.

It is a junction number, because it is equal to n+sod(n) for n = 2003303200985 and 2003303201003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003303201027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1501950 + ... + 2502490.

It is an arithmetic number, because the mean of its divisors is an integer number (50427316800).

Almost surely, 2^{2003303201020} is an apocalyptic number.

2003303201020 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 2003303201020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2420511206400).

2003303201020 is an abundant number, since it is smaller than the sum of its proper divisors (2837719211780).

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

2003303201020 is a wasteful number, since it uses less digits than its factorization.

2003303201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001059 (or 1001057 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 2003303201020 its reverse (201023033002), we get a palindrome (2204326234022).

The spelling of 2003303201020 in words is "two trillion, three billion, three hundred three million, two hundred one thousand, twenty".