1343220313 has 2 divisors, whose sum is σ = 1343220314. Its totient is φ = 1343220312.

The previous prime is 1343220299. The next prime is 1343220317. The reversal of 1343220313 is 3130223431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1112089104 + 231131209 = 33348^2 + 15203^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1343220313 is a prime.

It is not a weakly prime, because it can be changed into another prime (1343220317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671610156 + 671610157.

It is an arithmetic number, because the mean of its divisors is an integer number (671610157).

Almost surely, 2^1343220313 is an apocalyptic number.

It is an amenable number.

1343220313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343220313 is an equidigital number, since it uses as much as digits as its factorization.

1343220313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 1343220313 is about 36649.9701636986. The cubic root of 1343220313 is about 1103.3562267611.

Adding to 1343220313 its reverse (3130223431), we get a palindrome (4473443744).

The spelling of 1343220313 in words is "one billion, three hundred forty-three million, two hundred twenty thousand, three hundred thirteen".