3144530321 has 2 divisors, whose sum is σ = 3144530322. Its totient is φ = 3144530320.

The previous prime is 3144530317. The next prime is 3144530329. The reversal of 3144530321 is 1230354413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2239182400 + 905347921 = 47320^2 + 30089^2 .

It is a cyclic number.

It is not a de Polignac number, because 3144530321 - 2² = 3144530317 is a prime.

It is not a weakly prime, because it can be changed into another prime (3144530329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572265160 + 1572265161.

It is an arithmetic number, because the mean of its divisors is an integer number (1572265161).

Almost surely, 2^3144530321 is an apocalyptic number.

It is an amenable number.

3144530321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3144530321 is an equidigital number, since it uses as much as digits as its factorization.

3144530321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 3144530321 is about 56076.1118570109. Note that the first 3 decimals coincide. The cubic root of 3144530321 is about 1465.0482530593.

Adding to 3144530321 its reverse (1230354413), we get a palindrome (4374884734).

The spelling of 3144530321 in words is "three billion, one hundred forty-four million, five hundred thirty thousand, three hundred twenty-one".