3124303220 has 12 divisors (see below), whose sum is σ = 6561036804. Its totient is φ = 1249721280.

The previous prime is 3124303219. The next prime is 3124303253. The reversal of 3124303220 is 223034213.

3124303220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2047019536 + 1077283684 = 45244^2 + 32822^2 .

It is a super-2 number, since 2×3124303220² = 19522541221004736800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 156215161 = 3124303220 / (3 + 1 + 2 + 4 + 3 + 0 + 3 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 3124303192 and 3124303201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78107561 + ... + 78107600.

It is an arithmetic number, because the mean of its divisors is an integer number (546753067).

Almost surely, 2^3124303220 is an apocalyptic number.

It is an amenable number.

3124303220 is an abundant number, since it is smaller than the sum of its proper divisors (3436733584).

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

3124303220 is a wasteful number, since it uses less digits than its factorization.

3124303220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156215170 (or 156215168 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 3124303220 is about 55895.4669002773. The cubic root of 3124303220 is about 1461.9001998518.

Adding to 3124303220 its reverse (223034213), we get a palindrome (3347337433).

The spelling of 3124303220 in words is "three billion, one hundred twenty-four million, three hundred three thousand, two hundred twenty".