1323434343239 has 2 divisors, whose sum is σ = 1323434343240. Its totient is φ = 1323434343238.

The previous prime is 1323434343169. The next prime is 1323434343241. The reversal of 1323434343239 is 9323434343231.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1323434343239 - 2²⁰ = 1323433294663 is a prime.

It is a super-2 number, since 2×1323434343239² (a number of 25 digits) contains 22 as substring.

Together with 1323434343241, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1323434343239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323434342239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661717171619 + 661717171620.

It is an arithmetic number, because the mean of its divisors is an integer number (661717171620).

Almost surely, 2^{1323434343239} is an apocalyptic number.

1323434343239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323434343239 is an equidigital number, since it uses as much as digits as its factorization.

1323434343239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 44.

The spelling of 1323434343239 in words is "one trillion, three hundred twenty-three billion, four hundred thirty-four million, three hundred forty-three thousand, two hundred thirty-nine".