1343443399 has 2 divisors, whose sum is σ = 1343443400. Its totient is φ = 1343443398.

The previous prime is 1343443337. The next prime is 1343443403. The reversal of 1343443399 is 9933443431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1343443399 - 2¹³ = 1343435207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1343443499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671721699 + 671721700.

It is an arithmetic number, because the mean of its divisors is an integer number (671721700).

Almost surely, 2^1343443399 is an apocalyptic number.

1343443399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343443399 is an equidigital number, since it uses as much as digits as its factorization.

1343443399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 43.

The square root of 1343443399 is about 36653.0135050312. The cubic root of 1343443399 is about 1103.4173062677.

The spelling of 1343443399 in words is "one billion, three hundred forty-three million, four hundred forty-three thousand, three hundred ninety-nine".