43123222140043 has 4 divisors (see below), whose sum is σ = 44998144841808. Its totient is φ = 41248299438280.

The previous prime is 43123222140023. The next prime is 43123222140083. The reversal of 43123222140043 is 34004122232134.

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 43123222140043 - 2⁹ = 43123222139531 is a prime.

It is a super-2 number, since 2×43123222140043² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43123222139987 and 43123222140014.

It is not an unprimeable number, because it can be changed into a prime (43123222140023) 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, 937461350848 + ... + 937461350893.

It is an arithmetic number, because the mean of its divisors is an integer number (11249536210452).

Almost surely, 2^{43123222140043} is an apocalyptic number.

43123222140043 is a deficient number, since it is larger than the sum of its proper divisors (1874922701765).

43123222140043 is a wasteful number, since it uses less digits than its factorization.

43123222140043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874922701764.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 43123222140043 its reverse (34004122232134), we get a palindrome (77127344372177).

The spelling of 43123222140043 in words is "forty-three trillion, one hundred twenty-three billion, two hundred twenty-two million, one hundred forty thousand, forty-three".