1043443540291 has 2 divisors, whose sum is σ = 1043443540292. Its totient is φ = 1043443540290.

The previous prime is 1043443540267. The next prime is 1043443540297. The reversal of 1043443540291 is 1920453443401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1043443540291 - 2¹³ = 1043443532099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1043443540297) 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, 521721770145 + 521721770146.

It is an arithmetic number, because the mean of its divisors is an integer number (521721770146).

Almost surely, 2^{1043443540291} is an apocalyptic number.

1043443540291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043443540291 is an equidigital number, since it uses as much as digits as its factorization.

1043443540291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 40.

Adding to 1043443540291 its reverse (1920453443401), we get a palindrome (2963896983692).

The spelling of 1043443540291 in words is "one trillion, forty-three billion, four hundred forty-three million, five hundred forty thousand, two hundred ninety-one".