1040344323043 has 4 divisors (see below), whose sum is σ = 1040347538568. Its totient is φ = 1040341107520.

The previous prime is 1040344323037. The next prime is 1040344323047. The reversal of 1040344323043 is 3403234430401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040344323043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1040344322996 and 1040344323014.

It is not an unprimeable number, because it can be changed into a prime (1040344323047) 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, 1060321 + ... + 1790242.

It is an arithmetic number, because the mean of its divisors is an integer number (260086884642).

Almost surely, 2^{1040344323043} is an apocalyptic number.

1040344323043 is a deficient number, since it is larger than the sum of its proper divisors (3215525).

1040344323043 is an equidigital number, since it uses as much as digits as its factorization.

1040344323043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3215524.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 1040344323043 its reverse (3403234430401), we get a palindrome (4443578753444).

The spelling of 1040344323043 in words is "one trillion, forty billion, three hundred forty-four million, three hundred twenty-three thousand, forty-three".