3113120220 has 48 divisors (see below), whose sum is σ = 9961986048. Its totient is φ = 711570240.

The previous prime is 3113120209. The next prime is 3113120237. The reversal of 3113120220 is 220213113.

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 3113120220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3705676 + ... + 3706515.

It is an arithmetic number, because the mean of its divisors is an integer number (207541376).

Almost surely, 2^3113120220 is an apocalyptic number.

3113120220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3113120220 is an abundant number, since it is smaller than the sum of its proper divisors (6848865828).

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

3113120220 is a wasteful number, since it uses less digits than its factorization.

3113120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7412210 (or 7412208 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3113120220 is about 55795.3422787243. The cubic root of 3113120220 is about 1460.1538932045.

Adding to 3113120220 its reverse (220213113), we get a palindrome (3333333333).

The spelling of 3113120220 in words is "three billion, one hundred thirteen million, one hundred twenty thousand, two hundred twenty".