11215255241 has 2 divisors, whose sum is σ = 11215255242. Its totient is φ = 11215255240.

The previous prime is 11215255157. The next prime is 11215255243. The reversal of 11215255241 is 14255251211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10966278400 + 248976841 = 104720^2 + 15779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11215255241 is a prime.

Together with 11215255243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11215255243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5607627620 + 5607627621.

It is an arithmetic number, because the mean of its divisors is an integer number (5607627621).

Almost surely, 2^11215255241 is an apocalyptic number.

It is an amenable number.

11215255241 is a deficient number, since it is larger than the sum of its proper divisors (1).

11215255241 is an equidigital number, since it uses as much as digits as its factorization.

11215255241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4000, while the sum is 29.

The spelling of 11215255241 in words is "eleven billion, two hundred fifteen million, two hundred fifty-five thousand, two hundred forty-one".