1003003311220 has 12 divisors (see below), whose sum is σ = 2106306953604. Its totient is φ = 401201324480.

The previous prime is 1003003311187. The next prime is 1003003311229. The reversal of 1003003311220 is 221133003001.

It can be written as a sum of positive squares in 2 ways, for example, as 391723270884 + 611280040336 = 625878^2 + 781844^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1003003311194 and 1003003311203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003003311229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25075082761 + ... + 25075082800.

It is an arithmetic number, because the mean of its divisors is an integer number (175525579467).

Almost surely, 2^{1003003311220} is an apocalyptic number.

1003003311220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003003311220 is an abundant number, since it is smaller than the sum of its proper divisors (1103303642384).

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

1003003311220 is a wasteful number, since it uses less digits than its factorization.

1003003311220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50150165570 (or 50150165568 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 1003003311220 its reverse (221133003001), we get a palindrome (1224136314221).

The spelling of 1003003311220 in words is "one trillion, three billion, three million, three hundred eleven thousand, two hundred twenty".