1343440410409 has 2 divisors, whose sum is σ = 1343440410410. Its totient is φ = 1343440410408.

The previous prime is 1343440410407. The next prime is 1343440410461. The reversal of 1343440410409 is 9040140443431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1311666278400 + 31774132009 = 1145280^2 + 178253^2 .

It is a cyclic number.

It is not a de Polignac number, because 1343440410409 - 2¹ = 1343440410407 is a prime.

It is a super-3 number, since 3×1343440410409³ (a number of 37 digits) contains 333 as substring.

Together with 1343440410407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1343440410407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671720205204 + 671720205205.

It is an arithmetic number, because the mean of its divisors is an integer number (671720205205).

Almost surely, 2^{1343440410409} is an apocalyptic number.

It is an amenable number.

1343440410409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343440410409 is an equidigital number, since it uses as much as digits as its factorization.

1343440410409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 1343440410409 in words is "one trillion, three hundred forty-three billion, four hundred forty million, four hundred ten thousand, four hundred nine".