1243342032329 has 2 divisors, whose sum is σ = 1243342032330. Its totient is φ = 1243342032328.

The previous prime is 1243342032323. The next prime is 1243342032367. The reversal of 1243342032329 is 9232302433421.

It is an a-pointer prime, because the next prime (1243342032367) can be obtained adding 1243342032329 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1044385890304 + 198956142025 = 1021952^2 + 446045^2 .

It is a cyclic number.

It is not a de Polignac number, because 1243342032329 - 2¹² = 1243342028233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1243342032292 and 1243342032301.

It is not a weakly prime, because it can be changed into another prime (1243342032323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621671016164 + 621671016165.

It is an arithmetic number, because the mean of its divisors is an integer number (621671016165).

Almost surely, 2^{1243342032329} is an apocalyptic number.

It is an amenable number.

1243342032329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243342032329 is an equidigital number, since it uses as much as digits as its factorization.

1243342032329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 38.

The spelling of 1243342032329 in words is "one trillion, two hundred forty-three billion, three hundred forty-two million, thirty-two thousand, three hundred twenty-nine".