1243343343243 has 8 divisors (see below), whose sum is σ = 1657817374608. Its totient is φ = 828882437024.

The previous prime is 1243343343197. The next prime is 1243343343269. The reversal of 1243343343243 is 3423433433421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1243343343243 - 2⁸ = 1243343342987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1243343343283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3058080 + ... + 3440717.

It is an arithmetic number, because the mean of its divisors is an integer number (207227171826).

Almost surely, 2^{1243343343243} is an apocalyptic number.

1243343343243 is a deficient number, since it is larger than the sum of its proper divisors (414474031365).

1243343343243 is an equidigital number, since it uses as much as digits as its factorization.

1243343343243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6562573.

The product of its digits is 746496, while the sum is 39.

Adding to 1243343343243 its reverse (3423433433421), we get a palindrome (4666776776664).

The spelling of 1243343343243 in words is "one trillion, two hundred forty-three billion, three hundred forty-three million, three hundred forty-three thousand, two hundred forty-three".