12303353220553 has 2 divisors, whose sum is σ = 12303353220554. Its totient is φ = 12303353220552.

The previous prime is 12303353220491. The next prime is 12303353220569. The reversal of 12303353220553 is 35502235330321.

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., 12275794564489 + 27558656064 = 3503683^2 + 166008^2 .

It is a cyclic number.

It is not a de Polignac number, because 12303353220553 - 2³⁷ = 12165914267081 is a prime.

It is not a weakly prime, because it can be changed into another prime (12303353224553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6151676610276 + 6151676610277.

It is an arithmetic number, because the mean of its divisors is an integer number (6151676610277).

Almost surely, 2^{12303353220553} is an apocalyptic number.

It is an amenable number.

12303353220553 is a deficient number, since it is larger than the sum of its proper divisors (1).

12303353220553 is an equidigital number, since it uses as much as digits as its factorization.

12303353220553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243000, while the sum is 37.

Adding to 12303353220553 its reverse (35502235330321), we get a palindrome (47805588550874).

The spelling of 12303353220553 in words is "twelve trillion, three hundred three billion, three hundred fifty-three million, two hundred twenty thousand, five hundred fifty-three".