1344531313 has 2 divisors, whose sum is σ = 1344531314. Its totient is φ = 1344531312.

The previous prime is 1344531311. The next prime is 1344531341. The reversal of 1344531313 is 3131354431.

It is an a-pointer prime, because the next prime (1344531341) can be obtained adding 1344531313 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1343735649 + 795664 = 36657^2 + 892^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344531313 - 2¹ = 1344531311 is a prime.

Together with 1344531311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1344531311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672265656 + 672265657.

It is an arithmetic number, because the mean of its divisors is an integer number (672265657).

Almost surely, 2^1344531313 is an apocalyptic number.

It is an amenable number.

1344531313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344531313 is an equidigital number, since it uses as much as digits as its factorization.

1344531313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 28.

The square root of 1344531313 is about 36667.8512187447. The cubic root of 1344531313 is about 1103.7150732471.

Adding to 1344531313 its reverse (3131354431), we get a palindrome (4475885744).

The spelling of 1344531313 in words is "one billion, three hundred forty-four million, five hundred thirty-one thousand, three hundred thirteen".