1230660545437 has 2 divisors, whose sum is σ = 1230660545438. Its totient is φ = 1230660545436.

The previous prime is 1230660545357. The next prime is 1230660545489. The reversal of 1230660545437 is 7345450660321.

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., 835056026596 + 395604518841 = 913814^2 + 628971^2 .

It is an emirp because it is prime and its reverse (7345450660321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1230660545437 - 2¹¹ = 1230660543389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230660542437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615330272718 + 615330272719.

It is an arithmetic number, because the mean of its divisors is an integer number (615330272719).

Almost surely, 2^{1230660545437} is an apocalyptic number.

It is an amenable number.

1230660545437 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230660545437 is an equidigital number, since it uses as much as digits as its factorization.

1230660545437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 1230660545437 in words is "one trillion, two hundred thirty billion, six hundred sixty million, five hundred forty-five thousand, four hundred thirty-seven".