12201121030523 has 2 divisors, whose sum is σ = 12201121030524. Its totient is φ = 12201121030522.

The previous prime is 12201121030477. The next prime is 12201121030603. The reversal of 12201121030523 is 32503012110221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12201121030523 - 2¹⁰ = 12201121029499 is a prime.

It is not a weakly prime, because it can be changed into another prime (12201121033523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6100560515261 + 6100560515262.

It is an arithmetic number, because the mean of its divisors is an integer number (6100560515262).

Almost surely, 2^{12201121030523} is an apocalyptic number.

12201121030523 is a deficient number, since it is larger than the sum of its proper divisors (1).

12201121030523 is an equidigital number, since it uses as much as digits as its factorization.

12201121030523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 12201121030523 its reverse (32503012110221), we get a palindrome (44704133140744).

The spelling of 12201121030523 in words is "twelve trillion, two hundred one billion, one hundred twenty-one million, thirty thousand, five hundred twenty-three".