43145553244043 has 2 divisors, whose sum is σ = 43145553244044. Its totient is φ = 43145553244042.

The previous prime is 43145553244037. The next prime is 43145553244109. The reversal of 43145553244043 is 34044235554134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43145553244043 - 2⁶ = 43145553243979 is a prime.

It is a super-2 number, since 2×43145553244043² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43145573244043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21572776622021 + 21572776622022.

It is an arithmetic number, because the mean of its divisors is an integer number (21572776622022).

Almost surely, 2^{43145553244043} is an apocalyptic number.

43145553244043 is a deficient number, since it is larger than the sum of its proper divisors (1).

43145553244043 is an equidigital number, since it uses as much as digits as its factorization.

43145553244043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912000, while the sum is 47.

Adding to 43145553244043 its reverse (34044235554134), we get a palindrome (77189788798177).

The spelling of 43145553244043 in words is "forty-three trillion, one hundred forty-five billion, five hundred fifty-three million, two hundred forty-four thousand, forty-three".