3011303220 has 96 divisors (see below), whose sum is σ = 8671090176. Its totient is φ = 780364800.

The previous prime is 3011303209. The next prime is 3011303233. The reversal of 3011303220 is 223031103.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 3011303220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 664402 + ... + 668918.

It is an arithmetic number, because the mean of its divisors is an integer number (90323856).

Almost surely, 2^3011303220 is an apocalyptic number.

3011303220 is a gapful number since it is divisible by the number (30) 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 3011303220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4335545088).

3011303220 is an abundant number, since it is smaller than the sum of its proper divisors (5659786956).

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

3011303220 is a wasteful number, since it uses less digits than its factorization.

3011303220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4841 (or 4839 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 3011303220 is about 54875.3425501837. The cubic root of 3011303220 is about 1444.0586406359.

Adding to 3011303220 its reverse (223031103), we get a palindrome (3234334323).

The spelling of 3011303220 in words is "three billion, eleven million, three hundred three thousand, two hundred twenty".