43042341323 has 4 divisors (see below), whose sum is σ = 44092154568. Its totient is φ = 41992528080.

The previous prime is 43042341319. The next prime is 43042341347. The reversal of 43042341323 is 32314324034.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32314324034 = 2 ⋅16157162017.

It is a cyclic number.

It is not a de Polignac number, because 43042341323 - 2² = 43042341319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43042341383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524906561 + ... + 524906642.

It is an arithmetic number, because the mean of its divisors is an integer number (11023038642).

Almost surely, 2^43042341323 is an apocalyptic number.

43042341323 is a deficient number, since it is larger than the sum of its proper divisors (1049813245).

43042341323 is a wasteful number, since it uses less digits than its factorization.

43042341323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049813244.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 43042341323 its reverse (32314324034), we get a palindrome (75356665357).

The spelling of 43042341323 in words is "forty-three billion, forty-two million, three hundred forty-one thousand, three hundred twenty-three".