1202666231309 has 2 divisors, whose sum is σ = 1202666231310. Its totient is φ = 1202666231308.

The previous prime is 1202666231279. The next prime is 1202666231339. The reversal of 1202666231309 is 9031326662021.

It is a balanced prime because it is at equal distance from previous prime (1202666231279) and next prime (1202666231339).

It can be written as a sum of positive squares in only one way, i.e., 1153858375684 + 48807855625 = 1074178^2 + 220925^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202666231309 - 2¹⁶ = 1202666165773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202666231339) 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, 601333115654 + 601333115655.

It is an arithmetic number, because the mean of its divisors is an integer number (601333115655).

Almost surely, 2^{1202666231309} is an apocalyptic number.

It is an amenable number.

1202666231309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202666231309 is an equidigital number, since it uses as much as digits as its factorization.

1202666231309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 1202666231309 in words is "one trillion, two hundred two billion, six hundred sixty-six million, two hundred thirty-one thousand, three hundred nine".