1403321081 has 2 divisors, whose sum is σ = 1403321082. Its totient is φ = 1403321080.

The previous prime is 1403321071. The next prime is 1403321111. The reversal of 1403321081 is 1801233041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1403176681 + 144400 = 37459^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 1403321081 - 2¹⁰ = 1403320057 is a prime.

It is a super-2 number, since 2×1403321081² = 3938620112758017122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1403321071) 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, 701660540 + 701660541.

It is an arithmetic number, because the mean of its divisors is an integer number (701660541).

Almost surely, 2^1403321081 is an apocalyptic number.

It is an amenable number.

1403321081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1403321081 is an equidigital number, since it uses as much as digits as its factorization.

1403321081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1403321081 is about 37460.9273910831. The cubic root of 1403321081 is about 1119.5728284333.

The spelling of 1403321081 in words is "one billion, four hundred three million, three hundred twenty-one thousand, eighty-one".