3103313220 has 144 divisors (see below), whose sum is σ = 10905847680. Its totient is φ = 699591168.

The previous prime is 3103313219. The next prime is 3103313221. The reversal of 3103313220 is 223133013.

3103313220 is a `hidden beast` number, since 3 + 10 + 331 + 322 + 0 = 666.

3103313220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3103313219) and next prime (3103313221).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3103313193 and 3103313202.

It is not an unprimeable number, because it can be changed into a prime (3103313221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75111 + ... + 108849.

Almost surely, 2^3103313220 is an apocalyptic number.

3103313220 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 3103313220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5452923840).

3103313220 is an abundant number, since it is smaller than the sum of its proper divisors (7802534460).

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

3103313220 is a wasteful number, since it uses less digits than its factorization.

3103313220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33834 (or 33829 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 3103313220 is about 55707.3892764685. The cubic root of 3103313220 is about 1458.6190137980.

Adding to 3103313220 its reverse (223133013), we get a palindrome (3326446233).

It can be divided in two parts, 31033 and 13220, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 3103313220 in words is "three billion, one hundred three million, three hundred thirteen thousand, two hundred twenty".