1306066440331 has 2 divisors, whose sum is σ = 1306066440332. Its totient is φ = 1306066440330.

The previous prime is 1306066440281. The next prime is 1306066440421. The reversal of 1306066440331 is 1330446606031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1306066440331 - 2⁹ = 1306066439819 is a prime.

It is a super-2 number, since 2×1306066440331² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1306066447331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653033220165 + 653033220166.

It is an arithmetic number, because the mean of its divisors is an integer number (653033220166).

Almost surely, 2^{1306066440331} is an apocalyptic number.

1306066440331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306066440331 is an equidigital number, since it uses as much as digits as its factorization.

1306066440331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 1306066440331 in words is "one trillion, three hundred six billion, sixty-six million, four hundred forty thousand, three hundred thirty-one".