1043303042081 has 2 divisors, whose sum is σ = 1043303042082. Its totient is φ = 1043303042080.

The previous prime is 1043303042069. The next prime is 1043303042143. The reversal of 1043303042081 is 1802403033401.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 875878861456 + 167424180625 = 935884^2 + 409175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1043303042081 is a prime.

It is a super-2 number, since 2×1043303042081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1043303092081) 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, 521651521040 + 521651521041.

It is an arithmetic number, because the mean of its divisors is an integer number (521651521041).

Almost surely, 2^{1043303042081} is an apocalyptic number.

It is an amenable number.

1043303042081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043303042081 is an equidigital number, since it uses as much as digits as its factorization.

1043303042081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 1043303042081 its reverse (1802403033401), we get a palindrome (2845706075482).

The spelling of 1043303042081 in words is "one trillion, forty-three billion, three hundred three million, forty-two thousand, eighty-one".