43091332111 has 2 divisors, whose sum is σ = 43091332112. Its totient is φ = 43091332110.

The previous prime is 43091332103. The next prime is 43091332157. The reversal of 43091332111 is 11123319034.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43091332111 - 2³ = 43091332103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43091332111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43091372111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21545666055 + 21545666056.

It is an arithmetic number, because the mean of its divisors is an integer number (21545666056).

Almost surely, 2^43091332111 is an apocalyptic number.

43091332111 is a deficient number, since it is larger than the sum of its proper divisors (1).

43091332111 is an equidigital number, since it uses as much as digits as its factorization.

43091332111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 43091332111 in words is "forty-three billion, ninety-one million, three hundred thirty-two thousand, one hundred eleven".