11321030251 has 2 divisors, whose sum is σ = 11321030252. Its totient is φ = 11321030250.

The previous prime is 11321030233. The next prime is 11321030257. The reversal of 11321030251 is 15203012311.

11321030251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11321030251 - 2⁵ = 11321030219 is a prime.

It is not a weakly prime, because it can be changed into another prime (11321030257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660515125 + 5660515126.

It is an arithmetic number, because the mean of its divisors is an integer number (5660515126).

Almost surely, 2^11321030251 is an apocalyptic number.

11321030251 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321030251 is an equidigital number, since it uses as much as digits as its factorization.

11321030251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 11321030251 its reverse (15203012311), we get a palindrome (26524042562).

The spelling of 11321030251 in words is "eleven billion, three hundred twenty-one million, thirty thousand, two hundred fifty-one".