2040340043323 has 4 divisors (see below), whose sum is σ = 2040351685240. Its totient is φ = 2040328401408.

The previous prime is 2040340043257. The next prime is 2040340043369. The reversal of 2040340043323 is 3233400430402.

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 2040340043323 - 2²⁹ = 2039803172411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2040340043291 and 2040340043300.

It is not an unprimeable number, because it can be changed into a prime (2040340043023) 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, 5553990 + ... + 5909947.

It is an arithmetic number, because the mean of its divisors is an integer number (510087921310).

Almost surely, 2^{2040340043323} is an apocalyptic number.

2040340043323 is a deficient number, since it is larger than the sum of its proper divisors (11641917).

2040340043323 is a wasteful number, since it uses less digits than its factorization.

2040340043323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11641916.

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 2040340043323 its reverse (3233400430402), we get a palindrome (5273740473725).

The spelling of 2040340043323 in words is "two trillion, forty billion, three hundred forty million, forty-three thousand, three hundred twenty-three".