1003120220 has 12 divisors (see below), whose sum is σ = 2106552504. Its totient is φ = 401248080.

The previous prime is 1003120177. The next prime is 1003120243. The reversal of 1003120220 is 220213001.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25077986 + ... + 25078025.

It is an arithmetic number, because the mean of its divisors is an integer number (175546042).

Almost surely, 2^1003120220 is an apocalyptic number.

1003120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003120220 is an abundant number, since it is smaller than the sum of its proper divisors (1103432284).

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

1003120220 is a wasteful number, since it uses less digits than its factorization.

1003120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50156020 (or 50156018 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1003120220 is about 31672.0731875891. The cubic root of 1003120220 is about 1001.0389934521.

Adding to 1003120220 its reverse (220213001), we get a palindrome (1223333221).

The spelling of 1003120220 in words is "one billion, three million, one hundred twenty thousand, two hundred twenty".