43043400111 has 16 divisors (see below), whose sum is σ = 58334460800. Its totient is φ = 28227758688.

The previous prime is 43043400097. The next prime is 43043400119. The reversal of 43043400111 is 11100434034.

It is not a de Polignac number, because 43043400111 - 2¹⁷ = 43043269039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43043400119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 428041 + ... + 518946.

It is an arithmetic number, because the mean of its divisors is an integer number (3645903800).

Almost surely, 2^43043400111 is an apocalyptic number.

43043400111 is a deficient number, since it is larger than the sum of its proper divisors (15291060689).

43043400111 is a wasteful number, since it uses less digits than its factorization.

43043400111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947238.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 43043400111 its reverse (11100434034), we get a palindrome (54143834145).

The spelling of 43043400111 in words is "forty-three billion, forty-three million, four hundred thousand, one hundred eleven".