3133331220 has 48 divisors (see below), whose sum is σ = 8801589888. Its totient is φ = 832863360.

The previous prime is 3133331171. The next prime is 3133331237. The reversal of 3133331220 is 221333313.

3133331220 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 65299 + ... + 102618.

It is an arithmetic number, because the mean of its divisors is an integer number (183366456).

Almost surely, 2^3133331220 is an apocalyptic number.

3133331220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3133331220 is an abundant number, since it is smaller than the sum of its proper divisors (5668258668).

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

3133331220 is a wasteful number, since it uses less digits than its factorization.

3133331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168240 (or 168238 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 3133331220 is about 55976.1665354104. The cubic root of 3133331220 is about 1463.3069501017.

Adding to 3133331220 its reverse (221333313), we get a palindrome (3354664533).

The spelling of 3133331220 in words is "three billion, one hundred thirty-three million, three hundred thirty-one thousand, two hundred twenty".