1243342032343 has 4 divisors (see below), whose sum is σ = 1273667447808. Its totient is φ = 1213016616880.

The previous prime is 1243342032329. The next prime is 1243342032367. The reversal of 1243342032343 is 3432302433421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1243342032343 - 2⁵ = 1243342032311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1243342032299 and 1243342032308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243342032323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15162707671 + ... + 15162707752.

It is an arithmetic number, because the mean of its divisors is an integer number (318416861952).

Almost surely, 2^{1243342032343} is an apocalyptic number.

1243342032343 is a deficient number, since it is larger than the sum of its proper divisors (30325415465).

1243342032343 is an equidigital number, since it uses as much as digits as its factorization.

1243342032343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30325415464.

The product of its (nonzero) digits is 124416, while the sum is 34.

Adding to 1243342032343 its reverse (3432302433421), we get a palindrome (4675644465764).

The spelling of 1243342032343 in words is "one trillion, two hundred forty-three billion, three hundred forty-two million, thirty-two thousand, three hundred forty-three".