11254430423521 has 2 divisors, whose sum is σ = 11254430423522. Its totient is φ = 11254430423520.

The previous prime is 11254430423513. The next prime is 11254430423549. The reversal of 11254430423521 is 12532403445211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6634127462400 + 4620302961121 = 2575680^2 + 2149489^2 .

It is a cyclic number.

It is not a de Polignac number, because 11254430423521 - 2³ = 11254430423513 is a prime.

It is not a weakly prime, because it can be changed into another prime (11254430423021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5627215211760 + 5627215211761.

It is an arithmetic number, because the mean of its divisors is an integer number (5627215211761).

Almost surely, 2^{11254430423521} is an apocalyptic number.

It is an amenable number.

11254430423521 is a deficient number, since it is larger than the sum of its proper divisors (1).

11254430423521 is an equidigital number, since it uses as much as digits as its factorization.

11254430423521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 11254430423521 its reverse (12532403445211), we get a palindrome (23786833868732).

The spelling of 11254430423521 in words is "eleven trillion, two hundred fifty-four billion, four hundred thirty million, four hundred twenty-three thousand, five hundred twenty-one".