3139330321 has 2 divisors, whose sum is σ = 3139330322. Its totient is φ = 3139330320.

The previous prime is 3139330297. The next prime is 3139330333. The reversal of 3139330321 is 1230339313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2794708225 + 344622096 = 52865^2 + 18564^2 .

It is a cyclic number.

It is not a de Polignac number, because 3139330321 - 2²³ = 3130941713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3139330321.

It is not a weakly prime, because it can be changed into another prime (3139330121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569665160 + 1569665161.

It is an arithmetic number, because the mean of its divisors is an integer number (1569665161).

Almost surely, 2^3139330321 is an apocalyptic number.

It is an amenable number.

3139330321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3139330321 is an equidigital number, since it uses as much as digits as its factorization.

3139330321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 28.

The square root of 3139330321 is about 56029.7271187358. The cubic root of 3139330321 is about 1464.2402411206.

Adding to 3139330321 its reverse (1230339313), we get a palindrome (4369669634).

The spelling of 3139330321 in words is "three billion, one hundred thirty-nine million, three hundred thirty thousand, three hundred twenty-one".