1301333081 has 2 divisors, whose sum is σ = 1301333082. Its totient is φ = 1301333080.

The previous prime is 1301333021. The next prime is 1301333101. The reversal of 1301333081 is 1803331031.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1300251481 + 1081600 = 36059^2 + 1040^2 .

It is a cyclic number.

It is not a de Polignac number, because 1301333081 - 2¹⁰ = 1301332057 is a prime.

It is a super-2 number, since 2×1301333081² = 3386935575409905122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1301333021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650666540 + 650666541.

It is an arithmetic number, because the mean of its divisors is an integer number (650666541).

Almost surely, 2^1301333081 is an apocalyptic number.

It is an amenable number.

1301333081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301333081 is an equidigital number, since it uses as much as digits as its factorization.

1301333081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1301333081 is about 36073.9945251423. The cubic root of 1301333081 is about 1091.7658107755.

The spelling of 1301333081 in words is "one billion, three hundred one million, three hundred thirty-three thousand, eighty-one".