11530545521203 has 2 divisors, whose sum is σ = 11530545521204. Its totient is φ = 11530545521202.

The previous prime is 11530545521147. The next prime is 11530545521207. The reversal of 11530545521203 is 30212554503511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11530545521203 - 2²⁹ = 11530008650291 is a prime.

It is not a weakly prime, because it can be changed into another prime (11530545521207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5765272760601 + 5765272760602.

It is an arithmetic number, because the mean of its divisors is an integer number (5765272760602).

Almost surely, 2^{11530545521203} is an apocalyptic number.

11530545521203 is a deficient number, since it is larger than the sum of its proper divisors (1).

11530545521203 is an equidigital number, since it uses as much as digits as its factorization.

11530545521203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 11530545521203 in words is "eleven trillion, five hundred thirty billion, five hundred forty-five million, five hundred twenty-one thousand, two hundred three".