3141331321 has 2 divisors, whose sum is σ = 3141331322. Its totient is φ = 3141331320.

The previous prime is 3141331309. The next prime is 3141331327. The reversal of 3141331321 is 1231331413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2214737721 + 926593600 = 47061^2 + 30440^2 .

It is a cyclic number.

It is not a de Polignac number, because 3141331321 - 2⁹ = 3141330809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3141331292 and 3141331301.

It is not a weakly prime, because it can be changed into another prime (3141331327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1570665660 + 1570665661.

It is an arithmetic number, because the mean of its divisors is an integer number (1570665661).

Almost surely, 2^3141331321 is an apocalyptic number.

It is an amenable number.

3141331321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3141331321 is an equidigital number, since it uses as much as digits as its factorization.

3141331321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 22.

The square root of 3141331321 is about 56047.5808666172. The cubic root of 3141331321 is about 1464.5512758669.

Adding to 3141331321 its reverse (1231331413), we get a palindrome (4372662734).

The spelling of 3141331321 in words is "three billion, one hundred forty-one million, three hundred thirty-one thousand, three hundred twenty-one".