3143305221 has 16 divisors (see below), whose sum is σ = 4906624128. Its totient is φ = 1752364800.

The previous prime is 3143305213. The next prime is 3143305247. The reversal of 3143305221 is 1225033413.

It is not a de Polignac number, because 3143305221 - 2³ = 3143305213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3143305191 and 3143305200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143305211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1824520 + ... + 1826241.

It is an arithmetic number, because the mean of its divisors is an integer number (306664008).

Almost surely, 2^3143305221 is an apocalyptic number.

It is an amenable number.

3143305221 is a deficient number, since it is larger than the sum of its proper divisors (1763318907).

3143305221 is a wasteful number, since it uses less digits than its factorization.

3143305221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3650812.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 3143305221 is about 56065.1872466328. The cubic root of 3143305221 is about 1464.8579688124.

Adding to 3143305221 its reverse (1225033413), we get a palindrome (4368338634).

The spelling of 3143305221 in words is "three billion, one hundred forty-three million, three hundred five thousand, two hundred twenty-one".