1043323012243 has 4 divisors (see below), whose sum is σ = 1052555959368. Its totient is φ = 1034090065120.

The previous prime is 1043323012187. The next prime is 1043323012297. The reversal of 1043323012243 is 3422103233401.

It is a happy number.

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 1043323012243 - 2²⁵ = 1043289457811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1043323712243) 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, 4616473393 + ... + 4616473618.

It is an arithmetic number, because the mean of its divisors is an integer number (263138989842).

Almost surely, 2^{1043323012243} is an apocalyptic number.

1043323012243 is a deficient number, since it is larger than the sum of its proper divisors (9232947125).

1043323012243 is an equidigital number, since it uses as much as digits as its factorization.

1043323012243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9232947124.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 1043323012243 its reverse (3422103233401), we get a palindrome (4465426245644).

The spelling of 1043323012243 in words is "one trillion, forty-three billion, three hundred twenty-three million, twelve thousand, two hundred forty-three".