1341971321 has 2 divisors, whose sum is σ = 1341971322. Its totient is φ = 1341971320.

The previous prime is 1341971299. The next prime is 1341971327. The reversal of 1341971321 is 1231791431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1020163600 + 321807721 = 31940^2 + 17939^2 .

It is a cyclic number.

It is not a de Polignac number, because 1341971321 - 2¹⁰ = 1341970297 is a prime.

It is not a weakly prime, because it can be changed into another prime (1341971327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670985660 + 670985661.

It is an arithmetic number, because the mean of its divisors is an integer number (670985661).

Almost surely, 2^1341971321 is an apocalyptic number.

It is an amenable number.

1341971321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1341971321 is an equidigital number, since it uses as much as digits as its factorization.

1341971321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 32.

The square root of 1341971321 is about 36632.9267326541. The cubic root of 1341971321 is about 1103.0141358313.

The spelling of 1341971321 in words is "one billion, three hundred forty-one million, nine hundred seventy-one thousand, three hundred twenty-one".