43751232043 has 2 divisors, whose sum is σ = 43751232044. Its totient is φ = 43751232042.

The previous prime is 43751231989. The next prime is 43751232071. The reversal of 43751232043 is 34023215734.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43751232043 - 2¹⁷ = 43751100971 is a prime.

It is not a weakly prime, because it can be changed into another prime (43751232073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21875616021 + 21875616022.

It is an arithmetic number, because the mean of its divisors is an integer number (21875616022).

Almost surely, 2^43751232043 is an apocalyptic number.

43751232043 is a deficient number, since it is larger than the sum of its proper divisors (1).

43751232043 is an equidigital number, since it uses as much as digits as its factorization.

43751232043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 34.

Adding to 43751232043 its reverse (34023215734), we get a palindrome (77774447777).

The spelling of 43751232043 in words is "forty-three billion, seven hundred fifty-one million, two hundred thirty-two thousand, forty-three".