3103204221 has 24 divisors (see below), whose sum is σ = 4829424600. Its totient is φ = 1908786816.

The previous prime is 3103204213. The next prime is 3103204267. The reversal of 3103204221 is 1224023013.

It can be written as a sum of positive squares in 4 ways, for example, as 32936121 + 3070268100 = 5739^2 + 55410^2 .

It is not a de Polignac number, because 3103204221 - 2³ = 3103204213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3103204194 and 3103204203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103204211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 327255 + ... + 336603.

It is an arithmetic number, because the mean of its divisors is an integer number (201226025).

Almost surely, 2^3103204221 is an apocalyptic number.

It is an amenable number.

3103204221 is a deficient number, since it is larger than the sum of its proper divisors (1726220379).

3103204221 is a wasteful number, since it uses less digits than its factorization.

3103204221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12205 (or 12202 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3103204221 is about 55706.4109506258. The cubic root of 3103204221 is about 1458.6019363645.

Adding to 3103204221 its reverse (1224023013), we get a palindrome (4327227234).

The spelling of 3103204221 in words is "three billion, one hundred three million, two hundred four thousand, two hundred twenty-one".