1301001061 has 2 divisors, whose sum is σ = 1301001062. Its totient is φ = 1301001060.

The previous prime is 1301001047. The next prime is 1301001113. The reversal of 1301001061 is 1601001031.

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., 1228853025 + 72148036 = 35055^2 + 8494^2 .

It is a cyclic number.

It is not a de Polignac number, because 1301001061 - 2⁵ = 1301001029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1301001011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650500530 + 650500531.

It is an arithmetic number, because the mean of its divisors is an integer number (650500531).

Almost surely, 2^1301001061 is an apocalyptic number.

It is an amenable number.

1301001061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301001061 is an equidigital number, since it uses as much as digits as its factorization.

1301001061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1301001061 is about 36069.3923015068. The cubic root of 1301001061 is about 1091.6729524284.

Adding to 1301001061 its reverse (1601001031), we get a palindrome (2902002092).

The spelling of 1301001061 in words is "one billion, three hundred one million, one thousand, sixty-one".